zone out

US /zoʊn aʊt/
UK /zoʊn aʊt/
"zone out" picture
1.

멍해지다, 정신을 놓다

to stop paying attention, especially because you are bored or tired

:
I tend to zone out during long meetings.
긴 회의 중에 멍해지는 경향이 있어.
She just zoned out and didn't hear a word I said.
그녀는 그냥 멍해져서 내가 한 말을 한마디도 듣지 못했어.