違いない (Chigainai) is a Japanese expression meaning “sure, no mistaking it, for certain, without doubt”.
Meanings
- expression, i-adjectivesure; no mistaking it; for certain; without doubtoft. as に違いない
Examples
郵便屋さんに違いない。
It must be the postman.
病気だったに違いない。
He must have been ill.
彼女は病気に違いない。
She must be sick.
Sentences from Tatoeba (CC BY 2.0 FR).