뭔가 이상한

something strange

→ 뭔가
phrase Rare #24,737
something strange Often describes something that feels or seems off, and may be followed by a noun or a particle.
KO: 뭔가 이상한 소리가 들렸어요.
EN: I heard something strange.

뭔가 이상한 걸 느낀 거 예요?

Did you feel something strange?

— 포풍추영 (2025)

늘 뭔가 이상한 게 있었어

There was always something strange about it.

— TAR 타르 (2022)