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How to Say ‘Really, I’m sorry.’ in Japanese

本当にごめんなさい。

hontou ni gomen nasai

💬 Usage Tip: More polite option: [本当に申し訳ありません]. But [本当にごめんなさい] is common and heartfelt.

🇯🇵 In Japan: Sincere-sounding apology phrases can quickly calm neighbor tension—tone matters more than perfection.

Phrase Breakdown

本当に

hontou ni

really; truly

Adverb used to emphasize sincerity/strength of feeling.

Example

本当にありがとうございます。

Thank you very much (truly).

Words in this phrase

本当

hontou

ni

ごめんなさい。

gomen nasai

I’m sorry.

Common apology. Polite but casual; more formal options include 申し訳ありません.

Example

遅れてごめんなさい。

Sorry I’m late.

Words in this phrase

ごめん

gomen

なさい

nasai

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