I sent an email a Japanese former colleage of mine, and he replied several weeks later. His reply included an emphatic apology for not replying sooner (返信が遅くなってしまって本当にごめんなさい。) Is there a polite phrase I can use in my reply to acknowledge his apology and let him know that I was not inconvenienced?

I am thinking 気にしないでください sounds inappropriately like forgiveness (when in fact the delay was understandable and not a problem).

  • Please include examples of what you think it might be, or something showing your research efforts. Otherwise you run the risk of this being closed as a translation request.
    – istrasci
    Dec 11, 2020 at 0:22
  • @istrasci I think the question is generally applicable enough not to count as a translation request.
    – user40476
    Dec 11, 2020 at 11:33

2 Answers 2


"Not replying about it at all" is perhaps one of the valid options. It signals "fine, let's just forget about it" without saying anything.

If you want to respond, just saying 気にしないでください or 大丈夫です might sound a little blunt and unfriendly. It's best to explain why you were not bothered. "まだ締め切りには時間がありますので気にしないでください", "特に急いでいないので全く問題ありません", etc.


The apology might sound severe but this is just normal in written text. Don't take it as the person being ashamed or anything.

Just a regular 「大丈夫です」or 「問題ないです」should suffice.

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