Translation guide
An exclamation of dismay, alarm, or regret. Japanese has several common expressions that vary by intensity, formality, and gender.
Express sudden worry, shock, or mild panic about something bad happening.
A short, sharp exclamation of surprise or alarm. Very common and natural for both genders.
あっ、財布を忘れた！
Oh no, I forgot my wallet!
Express regret over a personal mistake or missed opportunity.
The go-to expression for 'I messed up'. Can be used alone or before explaining the mistake.
React to someone else's bad news with concern.
A sharp 'eh?' expressing surprise and concern. Often followed by a sympathetic phrase.
やばい is a general exclamation for bad situations, often used before the full impact is known. しまった is specifically for realizing you made a mistake. やばい is slangy; しまった is more neutral but slightly masculine.
やばい、忘れ物したかも。
Oh no, I might have left something behind.
しまった、忘れ物した。
Oh no, I left something behind.
Do not translate 'oh no' literally as ああいいえ or おおノー. These are not natural Japanese exclamations.
Casual slang meaning 'oh no' or 'this is bad'. Used by younger people, both genders. Can also mean 'awesome' in other contexts.
やばい、電車に間に合わない！
Oh no, I won't make the train!
Literally 'I've done it', used when you realize you made a mistake. Common among all ages, slightly masculine.
しまった、鍵をかけ忘れた。
Oh no, I forgot to lock the door.
Means 'terrible' or 'serious'. Used as an exclamation when something bad happens. Slightly more formal than やばい.
大変！事故があったみたい。
Oh no! It looks like there's been an accident.
A feminine exclamation of mild surprise or dismay. Often used by women, can sound old-fashioned.
あら、雨が降ってきたわ。
Oh no, it's started raining.
しまった！また寝坊した。
Oh no! I overslept again.
Casual, colloquial way to say 'I did it (and it was bad)'. Often used by younger speakers.
あーあ、やっちゃった。
Oh no, I've done it now.
Literally 'I failed'. More explicit and less exclamatory, but can be used as a muttered 'oh no'.
あ、失敗した…
Oh no, I messed up...
えっ、本当？大丈夫？
Oh no, really? Are you okay?
Literally 'that's terrible'. A standard sympathetic response to bad news.
それは大変ですね。
Oh no, that's terrible.
A soft exclamation of surprise or sympathy, often used by women. Can sound gentle or old-fashioned.
まあ、かわいそうに。
Oh no, poor thing.