言こと葉ばに窮きゅうする

expression, suru verb (special)

be at a loss for words; be stuck for words

Used when someone cannot find the right thing to say, often due to shock, embarrassment, or difficulty. Similar to 言葉に詰まる, but 窮する emphasizes being stuck or in a difficult position.

See also: 言葉に詰まる

• 突とつ然ぜんの質しつ問もんに、彼かれは言こと葉ばに窮きゅうした。

  He was at a loss for words at the sudden question.

• あまりの光こう景けいに言こと葉ばに窮きゅうしてしまった。

  I was so stunned by the sight that I couldn't find the words.