Japanese for Deeper Apologies: Expressing Regret and Making Amends
Learn to apologize for serious matters in Japanese, express regret over not doing something, and make amends with sincere phrases and actions.

Apologizing in Japanese goes beyond a simple sumimasen. When you've hurt someone deeply or failed to meet an important expectation, you need language that conveys genuine regret and a commitment to repair the relationship. This lesson focuses on expressing regret for not having done something, such as 'I regret not telling you,' and on making amends. You'll learn intermediate-level phrases and patterns that carry emotional weight, distinct from routine apologies for minor mistakes. We'll also cover the cultural nuances of timing, sincerity, and follow-through, so your apology is not just words but a step toward reconciliation.
By the end, you can…
- express regret for not having done something in Japanese.
- apologize sincerely for a serious mistake or oversight.
- offer to make amends and describe how I will do so.
- use appropriate formal and informal registers for deep apologies.
Listen once. Try it slowly. Then say it without looking.
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言わなかったことを後悔しています。
I regret not telling you.
Iwanakatta koto o kōkai shite imasu.
Formal and sincere; use when you failed to inform someone and now feel deep regret. The verb 言う (iu, to say) is in its negative past plain form 言わなかった (iwanakatta), followed by ことを後悔しています (koto o kōkai shite imasu), meaning 'regret the fact of not doing.'
本当に申し訳ありません。
I am truly sorry.
Hontō ni mōshiwake arimasen.
A deep, formal apology. 申し訳ありません (mōshiwake arimasen) is more formal than すみません (sumimasen) and conveys strong remorse. Use in professional or serious personal contexts.
埋め合わせをさせてください。
Please let me make it up to you.
Umeawase o sasete kudasai.
An offer to compensate or make amends. 埋め合わせ (umeawase) means 'making up for' or 'compensation.' This phrase shows willingness to take action to repair the relationship.
二度とこのようなことはしません。
I will never do this again.
Nido to kono yō na koto wa shimasen.
A promise not to repeat the mistake. 二度と (nido to) means 'again' and is used with a negative to emphasize 'never again.' Use when you want to assure the other person of your changed behavior.
許していただけますか。
Could you forgive me?
Yurushite itadakemasu ka.
A humble request for forgiveness. いただけますか (itadakemasu ka) is the humble potential form of もらう (morau, to receive), making the request very polite. Use when you sincerely seek forgiveness from someone of higher status or when you feel you've caused significant hurt.
Pronunciation guides are approximate. Slow playback keeps the original pitch.
Make it make sense
Useful pattern
To express regret for not doing something, use the pattern: [verb in negative past plain form] + ことを後悔しています (koto o kōkai shite imasu). For example, 言わなかったことを後悔しています (I regret not saying it). This pattern works with any verb: 伝えなかったことを後悔しています (I regret not conveying it), もっと早く連絡しなかったことを後悔しています (I regret not contacting you sooner). The particle を marks the object of regret, and 後悔しています is the polite present progressive form of 'regret.' For a more casual tone, you can say 後悔してる (kōkai shite ru).
When to use it
Use these deeper apologies when the consequences are significant: you've broken a promise, caused emotional pain, or failed to act when you should have. For example, if you forgot to inform a friend about a critical deadline and they missed an opportunity, you might say 言わなかったことを後悔しています。本当に申し訳ありません。 (I regret not telling you. I am truly sorry.) In contrast, a simple ごめん (gomen) is fine for minor slip-ups like being late. The key difference is that deeper apologies include acknowledgment of the specific harm, expression of regret, and often a plan to make amends. They are also more formal and may include humble language (keigo) depending on the relationship.
Listen to each line, then take one part and reply out loud.
この前のプロジェクトの件、君に言わなかったことを後悔している。
About the project the other day, I regret not telling you.Kono mae no purojekuto no ken, kimi ni iwanakatta koto o kōkai shite iru.そうか…正直、ショックだったよ。でも、後悔しているなら聞くよ。
I see... Honestly, I was shocked. But if you regret it, I'll listen.Sō ka... Shōjiki, shokku datta yo. Demo, kōkai shite iru nara kiku yo.本当に申し訳ない。埋め合わせをさせてほしい。何か手伝えることはある?
I'm truly sorry. I want to make it up to you. Is there anything I can help with?Hontō ni mōshiwake nai. Umeawase o sasete hoshii. Nanika tetsudaeru koto wa aru?わかった。じゃあ、次のミーティングの資料を一緒に作ってくれる?
Understood. Then, will you make the materials for the next meeting with me?Wakatta. Jā, tsugi no mītingu no shiryō o issho ni tsukutte kureru?A little context goes a long way
In Japanese culture, a deep apology often involves more than words; it includes showing sincere remorse through tone, body language (such as bowing), and concrete actions to make amends. The phrase 申し訳ありません (mōshiwake arimasen) is a formal apology that acknowledges a debt you cannot repay, while ごめんなさい (gomen nasai) is more personal and can be used with close friends or family. When apologizing for a serious matter, it's common to explain the situation and your feelings, but avoid over-explaining or making excuses, as that can seem insincere. Also, the concept of けじめ (kejime) — making a clear distinction — means you should not mix a deep apology with casual language. Follow-through on promises is crucial; without action, words may be seen as empty.
One thing to watch for
Using すみません (sumimasen) for a serious apology, such as when you've hurt someone deeply.
Try this instead: すみません is versatile but can sound too light for serious matters. For deeper regret, use 申し訳ありません (mōshiwake arimasen) or 本当にごめんなさい (hontō ni gomen nasai) with a sincere tone. For example, instead of すみません、言いませんでした (Sumimasen, iimasen deshita), say 言わなかったことを後悔しています。申し訳ありません (Iwanakatta koto o kōkai shite imasu. Mōshiwake arimasen).
Your turn
Try answering out loud before checking a possible answer.
1How would you say 'I regret not contacting you sooner' in Japanese?
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もっと早く連絡しなかったことを後悔しています。
This uses the pattern [negative past plain verb] + ことを後悔しています. 連絡しなかった is the negative past of 連絡する (to contact). You could also say もっと早く連絡しなかったことを後悔してる in casual speech.
2What is a polite way to ask for forgiveness in a serious situation?
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許していただけますか。
This is a humble request using いただけますか, the potential form of いただく (to receive) in a polite question. Alternatives include 許してください (more direct) or 許してもらえますか (slightly less formal).
3Translate to Japanese: 'I will never do this again, so please let me make it up to you.'
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二度とこのようなことはしませんので、埋め合わせをさせてください。
This combines a promise (二度と...しません) with an offer to make amends (埋め合わせをさせてください). The particle ので softens the request. You could also use から instead of ので for a slightly more casual tone.
For deeper apologies in Japanese, go beyond sumimasen: express specific regret with 後悔しています, use formal apologies like 申し訳ありません, and offer concrete amends with 埋め合わせをさせてください. Sincerity and follow-through matter most.
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