窮する

きゅうするkyuusuru

suru verb · intransitive

1. to be at a loss
2. to be puzzled
3. to be perplexed
4. to be at one's wit's end
5. to be in a dilemma
6. to not know what to (do, say, etc)
7. to be pressed for
8. to be pinched for

Study it in Yanamino