잘못이란

that it's one's fault

→ 잘못
phrase Rare #22,685
that it's one's fault A contracted form of 잘못이라는, used to quote or emphasize the idea that something is a fault or someone's fault.
KO: 이게 다 내 잘못이란 말이에요?
EN: Are you saying this is all my fault?

잘못 이란 거 알잖아요

You know that's wrong.

— 부고니아 (2025)

그들 잘못 이란 거 야?

Why is it their fault?

— 하얀 리본 (2009)

이게 우리 잘못 이란 거 야?

Are you saying this is our fault?

— 걸리 보이 (2019)

그럼 잘못 이란 거 예요?

So it's my fault?

— 엘 시크레토: 비밀의 눈동자 (2009)