閉口

へいこう

to be stumped, to be at a loss, to be at one's wits' end, to be nonplussed

JLPT N1

Details

Part of Speech:
Suru verb, Intransitive verb, Noun, Na-adjective
Romaji:
heikou

Example Sentences

この問題に閉口した

I'm stumped with this problem