閉口頓首 (へいこうとんしゅ) Japanese meaning | KotomoraMeanings
1
noun, noun or participle which takes 'suru'
at a complete loss; at one's wit's end; at a loss for an answer
yojijukugo (four-character idiom)
A yojijukugo describing a state of being utterly stumped, unable to think of what to do or say. Often used in formal or literary contexts.
あまりの難問に、一同閉口頓首の体だった。
Faced with such a difficult problem, everyone was at their wit's end.
