間ま違ちがいなし

Meanings

Used to express strong conviction that something is definitely the case; often appears at the end of a statement or as a standalone interjection. Similar to 間違いない, but 間違いなし is slightly more casual and emphatic.

See also: 間違いない · 間違いなく

あの店みせのラーメンは美味うまい。間ま違ちがいなし！
That shop's ramen is delicious. No doubt about it!
この計けい画かくなら成せい功こうは間ま違ちがいなしだ。
With this plan, success is certain.

See all 3 example sentences ›

Kanji

間interval, space
違difference, differ
無nothingness, none, ain't

Related words

間ま違ちがいない
間違いない is the standard adjectival phrase meaning 'certain' or 'sure' and can modify nouns (e.g., 間違いない事実). 間違いなし is a more emphatic, often sentence-final expression that functions like an interjection or standalone assertion.
間ま違ちがいなく
間違いなく is the adverbial form meaning 'without fail' or 'undoubtedly', used to modify verbs or adjectives. 間違いなし is a predicative expression that asserts certainty about a situation.

Written forms

間ま違ちがいなし
Standard kanji spelling; the kana なし is more common than 無し in modern usage.
間ま違ちがい無なし
Alternative spelling using the kanji 無 for なし; somewhat more formal or emphatic.

Etymology

Compound of 間違い (mistake, error) + なし (classical terminal form of ない, 'not exist'). Literally 'there is no mistake', used idiomatically to mean 'certain' or 'no doubt'.