것 같지 않아

doesn't seem to be; it doesn't seem like

→ 것
phrase Uncommon #5,846
doesn't seem to be; it doesn't seem like An informal negative form of 것 같아, used to say that something does not seem or appear to be the case. With question intonation, it can mean “doesn’t it seem like...?” or seek agreement.
KO: 이 계획은 좋은 것 같지 않아.
EN: This plan doesn't seem like a good idea.

가능한 것 같지 않아?

Doesn't that seem possible?

— 이중 배상 (1944)

걔네들 떠날 것 같지 않아, 그레이스.

I don't think they're going to leave, Grace.

— 씨너스: 죄인들 (2025)

우리를 놔줄 것 같지 않아

I don't think they're going to let us go.

— 특전 U보트 (1981)

자신이 틀렸다고 인정할 것 같지 않아.

I don't think Tom will admit that he was wrong.