に違いない（にちがいない）
JLPT N1 · noun
Meaning: must be/certainly
Example sentences
- 彼は知っているに違いない。 — He must know about it.
- 留守に違いない。 — They must be out.
Related words
See it used in real works
- Example sentences from Japanese novels & web fiction (Massif)
- Hear “に違いない” pronounced in real videos (YouGlish)