20 Idioms for Regret With Real Examples

Have you ever looked back at a decision and wished you had chosen differently? The 20 Idioms for Regret With Real Examples in this guide help express those difficult feelings naturally. Regret can appear after missed opportunities, poor decisions, forgotten promises, or moments we wish we could change. These idioms for regret make English more expressive by adding emotion, imagery, and context to everyday communication.

You’ll discover practical expressions that fit conversations, formal writing, personal messages, and storytelling. Each idiom includes a clear meaning, a natural example, alternative expressions, and an explanation of its English usage. The examples also show how regret can appear in business communication, meetings, scheduling, project management, and everyday situations involving a calendar or online booking.

Understanding these expressions can improve your grammar, vocabulary, and consistency in written and spoken English. You’ll also see how figurative language can describe missed chances, disappointment, hindsight, and emotional reflection without sounding unnatural. Whether you are writing an essay, preparing content for broadcasting, or improving professional communication, these examples make each expression easier to understand and remember.

What Is an Idiom?

An idiom is a familiar expression whose meaning is different from the literal meaning of its individual words. For example, “break the ice” does not mean physically breaking ice; it means helping people feel more comfortable in a social situation.

Similarly, “spill the beans” does not literally mean dropping beans. It means revealing information or a secret.

Idioms use figurative language to communicate an idea through a familiar image. Because of this, they can make ordinary communication more colorful and memorable.

Why Use Idioms for Regret?

Regret is an emotional idea, and a simple statement does not always capture its full weight. Idioms can give that feeling shape and personality.

For example, “I regret my decision” is clear, but “I’m kicking myself over my decision” sounds more personal and emotional. Likewise, “There is nothing I can do now” becomes more vivid with “There’s no use crying over spilled milk.”

Idioms can help you:

• Express difficult emotions without lengthy explanations.
• Make descriptions of regret more vivid.
• Explain abstract feelings through familiar images.
• Add personality to conversations and personal writing.
• Make stories and essays more memorable.
• Show different shades of regret, from mild disappointment to deep remorse.
• Communicate the difference between dwelling on the past and learning from it.

Quick List of 20 Idioms for Regret

1. Cry over spilled milk
2. Kick oneself
3. Rue the day
4. Live to regret it
5. If only
6. Coulda, woulda, shoulda
7. Too little, too late
8. Close the stable door after the horse has bolted
9. A bitter pill to swallow
10. Have second thoughts
11. Eat humble pie
12. Hang one’s head
13. Wish the ground would swallow you up
14. Have buyer’s remorse
15. Eat one’s words
16. Take something back
17. Water under the bridge
18. Let bygones be bygones
19. Learn the hard way
20. Kick yourself for not doing something

Cry over spilled milk

Read more:20 Idioms for Everyday With Real Examples

Meaning

“Cry over spilled milk” means to feel upset about something that has already happened and cannot be changed. The image is simple: once milk has spilled, being upset will not put it back in the glass.

In a Sentence

I missed the deadline, but there’s no point crying over spilled milk now; I need to focus on the next opportunity.

Other Ways to Say It

• There’s no use dwelling on the past.
• What’s done is done.
• You can’t change what happened.
• Let the past stay in the past.

Explanation

The spilled milk represents a mistake or unfortunate event that cannot be undone. The expression is especially useful when regret becomes unproductive. It acknowledges disappointment while encouraging someone to move forward rather than remain stuck.

Best Use

This idiom works naturally in everyday conversations, advice, personal messages, and informal writing. It can sound practical rather than deeply emotional.

Kick oneself

Meaning

To “kick oneself” means to feel annoyed, disappointed, or regretful because of something you did—or failed to do.

In a Sentence

I’m kicking myself for not checking the address before leaving home.

Other Ways to Say It

• Blame yourself for a mistake.
• Be annoyed with yourself.
• Wish you had acted differently.
• Feel foolish about your decision.

Explanation

The expression creates a humorous physical image of someone metaphorically punishing themselves for a mistake. It usually suggests personal frustration and regret, rather than serious remorse.

Best Use

It is particularly natural in casual conversation, storytelling, emails, and personal messages.

Rue the day

Meaning

To “rue the day” means to deeply regret something that happened or a decision that was made.

In a Sentence

He may rue the day he turned down that opportunity when he sees how successful the project becomes.

Other Ways to Say It

• Deeply regret it.
• Wish you had never done it.
• Regret the decision bitterly.
• Look back on it with remorse.

Explanation

“Rue” means to feel deep regret. The expression “rue the day” gives regret a dramatic sense of consequence, as though a particular day marked the beginning of a mistake.

Best Use

This expression fits dramatic storytelling, literature, speeches, and humorous exaggeration. It can sound somewhat old-fashioned or theatrical in everyday conversation.

Live to regret it

Meaning

To “live to regret it” means that someone will probably feel sorry about a current decision or action later.

In a Sentence

If you ignore the warning and rush into the agreement, you may live to regret it.

Other Ways to Say It

• Regret it later.
• Wish you had not done it.
• Come to regret the decision.
• Realize your mistake afterward.

Explanation

The phrase focuses on future regret rather than regret that has already happened. It often carries a warning, suggesting that consequences may eventually make the decision painful to remember.

Best Use

Use it in conversation, advice, warnings, stories, and dramatic dialogue. Depending on the situation, it can sound serious or playful.

If only

Meaning

“If only” expresses a wish that something in the past had happened differently.

In a Sentence

If only I had listened to my instincts before accepting the offer.

Other Ways to Say It

• I wish I had…
• I wish things had been different.
• Had I known…
• I should have…

Explanation

This short expression captures the painful feeling of imagining an alternative past. It is especially powerful because it leaves the missing possibility unstated, allowing the reader or listener to feel the weight of the unrealized choice.

Best Use

“If only” works beautifully in poetry, personal writing, reflective essays, conversations, and emotional storytelling.

Coulda, woulda, shoulda

Meaning

“Coulda, woulda, shoulda” is an informal expression for dwelling on things you believe you could have, would have, or should have done differently.

In a Sentence

We can spend all night on coulda, woulda, shoulda, but the decision has already been made.

Other Ways to Say It

• What I could have done.
• What I should have done.
• Dwelling on past choices.
• Second-guessing the past.

Explanation

The phrase groups together the different thoughts that often accompany regret. Its conversational rhythm can make regret sound frustrated but slightly humorous, especially when someone realizes that endless speculation will not change the outcome.

Best Use

It is best for casual conversation, social media, dialogue, and informal writing. Avoid it in highly formal academic or professional prose.

Too little, too late

Meaning

“Too little, too late” describes an action that comes after the situation has already become difficult or impossible to fix.

In a Sentence

His apology was sincere, but after years of silence, it felt too little, too late.

Other Ways to Say It

• The chance has already passed.
• The help came too late.
• It’s not enough anymore.
• The damage has already been done.

Explanation

The expression highlights the painful gap between what is finally offered and what was needed earlier. It often carries disappointment because the right action has arrived after its usefulness has faded.

Best Use

It fits conversations, personal messages, commentary, stories, and emotional writing.

Close the stable door after the horse has bolted

Meaning

This idiom means taking action to prevent a problem only after the problem has already happened.

In a Sentence

Installing stronger security after the files were stolen was like closing the stable door after the horse had bolted.

Other Ways to Say It

• Act after the damage is done.
• Prevent a problem too late.
• Shut the door after the event.
• Try to fix things after the fact.

Explanation

The image comes from a horse escaping an open stable. Closing the door afterward may prevent another escape, but it cannot bring back the horse that is already gone. The expression captures belated action and the regret that accompanies it.

Best Use

This is useful in conversation, essays, workplace discussions, and practical commentary. It is more common in British English and can sound less familiar to some American English speakers.

A bitter pill to swallow

Meaning

“A bitter pill to swallow” describes something unpleasant or disappointing that a person must accept.

In a Sentence

Losing the competition after months of preparation was a bitter pill to swallow.

Other Ways to Say It

• A painful truth to accept.
• A hard reality.
• A difficult lesson.
• Something unpleasant to come to terms with.

Explanation

The expression compares an unwanted truth or experience to medicine that tastes bitter but must still be swallowed. It works well when regret involves accepting consequences rather than simply wishing the past away.

Best Use

Use it in conversation, essays, speeches, reviews, and reflective writing. It is generally natural and widely understandable.

Have second thoughts

Meaning

To “have second thoughts” means to begin questioning a decision you previously felt ready to make.

In a Sentence

I was about to send the message, but I had second thoughts and decided to wait until morning.

Other Ways to Say It

• Reconsider your decision.
• Have doubts.
• Think twice.
• Question your choice.

Explanation

This expression focuses on uncertainty before or around a decision, rather than regret after the consequences are known. It can therefore describe the moment when regret is beginning to form.

Best Use

It is especially suitable for everyday conversation, professional communication, stories, and personal messages.

Eat humble pie

Meaning

To “eat humble pie” means to admit that you were wrong and accept embarrassment or humiliation.

In a Sentence

After accusing his colleague unfairly, he had to eat humble pie and apologize.

Other Ways to Say It

• Admit you were wrong.
• Swallow your pride.
• Apologize sincerely.
• Own your mistake.

Explanation

The expression is less about private regret and more about openly acknowledging a mistake. It can involve regret because admitting the truth often follows the realization that you handled a situation badly.

Best Use

It works well in conversation, storytelling, humorous writing, and informal commentary.

Hang one’s head

Meaning

To “hang one’s head” means to show shame, sadness, disappointment, or regret.

In a Sentence

After letting his team down, he hung his head and quietly left the room.

Other Ways to Say It

• Feel ashamed.
• Show remorse.
• Lower your head in shame.
• Feel deeply disappointed in yourself.

Explanation

Unlike some regret expressions that describe thoughts, this one focuses on visible emotion. The lowered head creates a clear picture of someone carrying shame or disappointment.

Best Use

It is especially effective in stories, novels, speeches, and emotional descriptions. It can sound more literary than casual.

Wish the ground would swallow you up

Meaning

To “wish the ground would swallow you up” means to feel so embarrassed or ashamed that you wish you could disappear.

In a Sentence

When I realized I had called the client by the wrong name, I wished the ground would swallow me up.

Other Ways to Say It

• Wish you could disappear.
• Feel unbearably embarrassed.
• Want to hide.
• Feel mortified.

Explanation

The exaggerated image of disappearing into the ground communicates intense embarrassment and self-consciousness. It can overlap with regret when someone wishes they could undo an embarrassing action.

Best Use

This expression is excellent for personal stories, humorous anecdotes, fiction, and conversational English.

Have buyer’s remorse

Meaning

“Buyer’s remorse” is the regret or doubt someone experiences after making a purchase, especially an expensive one.

In a Sentence

I had buyer’s remorse the morning after ordering the expensive laptop.

Other Ways to Say It

• Regret the purchase.
• Doubt what you bought.
• Feel uneasy about spending the money.
• Wish you had waited.

Explanation

This expression gives a specific name to regret that follows spending money. The word “remorse” makes the feeling stronger than simple uncertainty, while “buyer” clearly identifies its cause.

Best Use

It is useful in everyday conversation, consumer discussions, blogs, and informal business writing.

Eat one’s words

Meaning

To “eat one’s words” means to admit that something you previously said was wrong.

In a Sentence

I confidently said the project would fail, so I had to eat my words when it became a huge success.

Other Ways to Say It

• Admit you were wrong.
• Take back what you said.
• Acknowledge your mistake.
• Retract your statement.

Explanation

The expression uses an amusing image of literally swallowing your own words. It often involves embarrassment, changed circumstances, and regret over speaking too confidently.

Best Use

It works particularly well in conversation, dialogue, storytelling, and informal writing.

Take something back

Meaning

To “take something back” can mean withdrawing something you have said or done because you regret it or no longer stand by it.

In a Sentence

I was angry when I said it, and I wish I could take those words back.

Other Ways to Say It

• Withdraw what you said.
• Retract your words.
• Apologize for what you said.
• Wish you had not said it.

Explanation

This expression is especially useful for spoken regret. Once words have been said, they cannot literally be retrieved, so “taking them back” creates a simple metaphor for wishing you could undo them.

Best Use

It is highly natural in conversations, apologies, personal messages, songs, and emotional storytelling.

Water under the bridge

Meaning

“Water under the bridge” describes something unpleasant from the past that a person has decided not to keep worrying about.

In a Sentence

We both made mistakes, but that argument is water under the bridge now.

Other Ways to Say It

• It’s in the past.
• Let’s move on.
• It’s behind us.
• I’ve made peace with it.

Explanation

The flowing water represents time carrying an event away. Rather than focusing on regret, this idiom emphasizes acceptance and emotional release.

Best Use

It is natural in everyday conversation, reconciliation, personal messages, and relationship discussions.

Let bygones be bygones

Meaning

To “let bygones be bygones” means to forgive or stop dwelling on past disagreements or mistakes.

In a Sentence

We both said things we regret, but I think it’s time to let bygones be bygones.

Other Ways to Say It

• Leave the past behind.
• Forgive and move forward.
• Put the disagreement behind you.
• Stop dwelling on old mistakes.

Explanation

This expression shifts attention from regret toward forgiveness and moving forward. It does not necessarily deny that something painful happened; instead, it suggests choosing not to let the past control the present.

Best Use

It works well in conversations, reconciliation, speeches, stories, and personal writing. It can sound slightly traditional.

Learn the hard way

Meaning

To “learn the hard way” means discovering an important lesson through an unpleasant or painful experience.

In a Sentence

I learned the hard way that ignoring small problems can make them much worse.

Other Ways to Say It

• Learn from a painful mistake.
• Discover through experience.
• Find out the difficult way.
• Learn from your mistakes.

Explanation

This expression connects regret with experience and personal growth. The mistake may be painful, but the lesson can prevent the same problem from happening again.

Best Use

Use it in conversation, advice, essays, personal stories, and motivational writing.

Kick yourself for not doing something

Meaning

To “kick yourself for not doing something” means to strongly regret failing to take an opportunity or action.

In a Sentence

I’m kicking myself for not saving a copy of the original document.

Other Ways to Say It

• Regret not doing something.
• Wish you had acted.
• Blame yourself for missing the chance.
• Wish you had taken the opportunity.

Explanation

This variation gives the idea of self-directed frustration a specific cause. It is especially effective when someone recognizes that a simple action could have prevented the current problem.

Best Use

It is best suited to casual conversation, personal messages, storytelling, and informal writing.

Exercise: Practice Using Idioms

Choose the best answer for each question.

What does “cry over spilled milk” mean?

A. Celebrate a surprising achievement

B. Feel sorry about something that cannot be changed

C. Conceal an embarrassing error

D. Refuse to make a tough choice

Which expression describes deep regret about something that happened?

A. Rue the day
B. Let bygones be bygones
C. Have second thoughts
D. Eat humble pie

Which expression is most closely associated with regret after making a purchase?

A. Water under the bridge
B. Too little, too late
C. Buyer’s remorse
D. Hang one’s head

What does “live to regret it” emphasize?

A. Regret that has already disappeared
B. Future regret about a current action
C. Embarrassment during a conversation
D. Forgiveness for a past mistake

Which expression means reconsidering a decision?

A. Have second thoughts
B. Eat one’s words
C. Learn the hard way
D. Cry over spilled milk

What does “too little, too late” suggest?

A. Took action before any trouble started

B. Got more assistance than was needed

C. Responded after the problem became hard to solve

D. Refused to choose between options

Which idiom focuses on admitting that you were wrong?

A. Eat humble pie
B. Water under the bridge
C. If only
D. Live to regret it

What does “wish the ground would swallow you up” usually express?

A. Confidence
B. Excitement
C. Intense embarrassment
D. Relief

Which expression suggests moving past an old disagreement?

A. Kick oneself
B. Let bygones be bygones
C. Rue the day
D. Have buyer’s remorse

Which statement uses “eat one’s words” correctly?

A. She ate her words before dinner.
B. He ate his words because he was hungry.
C. I had to eat my words after my prediction proved wrong.
D. They ate their words during the celebration.

Which expression best describes regret that follows an embarrassing action?

A. Wish the ground would swallow you up
B. Too little, too late
C. Water under the bridge
D. Learn the hard way

What does “learn the hard way” suggest?

A. Gaining knowledge through a difficult experience

B. Acquiring skills without committing errors

C. Benefiting from another person’s success

D. Picking up new information in a short time

Which expression uses a metaphor of escaped livestock to describe belated action?

A. Eat humble pie
B. Close the stable door after the horse has bolted
C. Kick oneself
D. If only

Which phrase most clearly expresses regret about a past possibility?

A. If only
B. Eat one’s words
C. Let bygones be bygones
D. Have second thoughts

What is the main idea behind “water under the bridge”?

A. A problem is becoming worse
B. A decision should be delayed
C. A past problem is being left behind
D. A person is experiencing buyer’s remorse

Answers

1. B — “Cry over spilled milk” means dwelling on something that has already happened and cannot be changed.
2. A — “Rue the day” means to feel deep regret about something that happened.
3. C — “Buyer’s remorse” specifically refers to regret after making a purchase.
4. B — “Live to regret it” warns that a current action may cause regret later.
5. A — “Have second thoughts” means to reconsider a decision or develop doubts.
6. C — “Too little, too late” describes an action that comes after it can meaningfully solve the problem.
7. A — “Eat humble pie” means admitting that you were wrong, often with some embarrassment.
8. C — “Wish the ground would swallow you up” expresses a strong desire to disappear because of embarrassment.
9. B — “Let bygones be bygones” means to stop dwelling on past disagreements and move forward.
10. C — “Eat one’s words” means admitting that something previously said was wrong.
11. A — The expression is commonly used for intense embarrassment, especially after an awkward incident.
12. A — “Learn the hard way” means gaining knowledge through an unpleasant or difficult experience.
13. B — The stable-door image represents trying to prevent a problem after it has already happened.
14. A — “If only” introduces a wish that something in the past had happened differently.
15. C — “Water under the bridge” suggests that a past problem is no longer worth dwelling on.

FAQs

What is an idiom for regret?

An idiom for regret is a familiar figurative expression that communicates remorse, disappointment, embarrassment, second-guessing, or acceptance of a past mistake. Examples include “kick oneself,” “rue the day,” and “cry over spilled milk.”

How do I create my own idiom?

Start with the feeling or idea you want to express, then connect it to a clear, memorable image. However, if you are writing formal English, it is usually better to use established idioms rather than inventing one and presenting it as a conventional expression.

What makes an idiom effective?

An effective idiom creates an image that readers can understand quickly while adding an emotional layer to the message. The best expressions are clear, relevant, and natural for the situation.

Can I use these idioms in everyday conversation?

Yes. Many of these expressions, such as “kick yourself,” “have second thoughts,” “buyer’s remorse,” and “cry over spilled milk,” are natural in everyday English. More dramatic expressions such as “rue the day” may sound literary or theatrical.

What is the difference between an idiom and a simile?

An idiom is an established expression with a figurative meaning, such as “cry over spilled milk.” A simile directly compares two things using words such as “like” or “as,” such as “regret felt like a heavy stone.” An idiom is generally recognized as a conventional expression, while a simile can be newly created.

Conclusion

Regret can be difficult to express because it is rarely just one emotion. It may involve sadness, embarrassment, frustration, remorse, disappointment, or the wish for another chance. Idioms give these feelings memorable forms, from “kicking yourself” over a mistake to deciding that something is “water under the bridge.”

The right expression depends on what kind of regret you want to communicate and whether you are speaking casually, writing creatively, or reflecting on a serious experience. Choose an idiom that matches the emotional weight of your message rather than simply choosing the most dramatic phrase. When used thoughtfully, figurative language can turn a simple statement about regret into something readers can feel, picture, and remember.