(まこと)

まことに
adverb
truly; sincerely; most (formal)
1. truly; sincerely; most
Very formal adverb expressing sincere or heartfelt emphasis. Common in business apologies, thank-yous, and ceremonial speech.
(まこと)にありがとうございます。
Thank you very much (sincerely).
(まこと)(もう)(わけ)ございません。
I am truly sorry.
(まこと)勝手(かって)ながら、明日(あす)休業(きゅうぎょう)とさせていただきます。
Most regrettably, we will be closed tomorrow.

Very formal adverb that heightens the sincerity of the following expression. Heard constantly in customer-service announcements, business emails, and ceremonial speech, but rare in casual conversation.

COMMON COLLOCATIONS:

  • (まこと)にありがとうございます: thank you very much
  • (まこと)(もう)(わけ)ございません / ありません: I am truly sorry
  • (まこと)恐縮(きょうしゅく)ですが: I am extremely sorry to ask, but...
  • (まこと)残念(ざんねん)ながら: most regrettably
  • (まこと)勝手(かって)ながら: most presumptuously (set phrase for business notices)

SIMILAR WORDS:

  • 本当(ほんとう)に: really — neutral; all registers
  • (じつ)に: truly; indeed — formal/literary, more emphatic of feeling
  • 大変(たいへん): very; greatly — formal but less humble than (まこと)