정말 멍청한

really stupid

→ 정말
phrase Rare #19,823
really stupid Used before a noun to describe someone or something as extremely unintelligent or foolish. It can sound insulting or harsh depending on context.
KO: 그건 정말 멍청한 결정이었어요.
EN: That was a really stupid decision.

정말 멍청한 실수 야

That was a really stupid mistake.

— 헌팅시즌 (2025)

정말 멍청한 짓 이었어

It was a really stupid thing to do.

— 클리너 (2025)

정말 멍청한 생각 이에요.

That's a really stupid idea.

— 조조 래빗 (2019)