しまった

しまった
interjection
oh no!; darn it!
informalemotionexpression
See also: やった (yay! (opposite emotion))
1. oh no!, darn it!, oops!
An exclamation used when one realizes a mistake has been made or something has gone wrong. Expresses regret or dismay at something that has already happened.
しまった、忘(わす)れた！
Oh no, I forgot!
しまった、鍵(かぎ)をかけ忘(わす)れた。
Darn it, I forgot to lock the door.
しまった、電車(でんしゃ)に乗(の)り遅(おく)れてしまった。
Oh no, I missed the train.

Originally the past tense of 仕舞(しま)う (to finish), used as an interjection: something unwanted has happened and cannot be undone. Said about one's own mistakes, aloud or to oneself.

Related words

Related Words

Related: 仕舞(しま)う (base verb)
Compare: やらかした (I messed up, I screwed up)
Related: ちくしょう (damn it!)
Related: やっちゃった (I've gone and done it)
Related: やらかす (I really messed up)
general
Added 2026.2.6 3:04 · Revised 2026.10.8 9:43
10000/10271_shimatta