착각한

mistaken, wrongly thought

→ 착각하다

착각 mistake, misconception, illusion + 한 past-tense attributive

verb · past tense Rare #30,175

mistaken, wrongly thought A past form used before a noun or before 것; often translates as “mistaken” or “thought ... by mistake,” depending on context.

KO: 제가 날짜를 착각한 것 같아요.

EN: I think I got the date wrong.

Conjugation of 착각하다

착각하고

Indicative past

착각한

착각한 건 아니고요?

You're not mistaken, are you?

— 자전거 도둑 (1948)

아니면 현진 이라고 착각한 걸까?

Or maybe they mistook me for Hyunjin?

— 20th Century Girl (2022)

착각한 거 아니야?

Are you sure you didn’t get the wrong idea?

— 브로커 (2022)

정말 이상했어, 내가 착각한 걸 까?

It was really weird, was I mistaken?

— 극장판 귀멸의 칼날: 무한성편 (2025)