窮 (hard up, destitute, suffer, perplexed, cornered)

私わたしは返答へんとうに窮きゅうした。

I was at a loss for an answer.

この服ふくは窮屈きゅうくつになったな。

These clothes have become tight.

非の打ち所ひのうちどころがない計画けいかくは、窮屈きゅうくつだなあ。

A faultless plan is stifling, isn't it.