よいか途方に暮れた

was at a loss about how to

→ 良い
phrase Rare #27,564
was at a loss about how to Often follows a phrase like どうして or 何を, meaning the person didn’t know what to do or say.
JA: 何を話せばよいか途方に暮れた。
EN: I was at a loss about what to talk about.

どうしてよいか途方に暮れた。

I was at a loss for what to do.

彼は何と言ってよいか途方に暮れた。

He was at a loss for words.

私は自分の気持ちをどう表してよいか途方に暮れた。

I was at a loss for how to express my feelings.

彼女はどうしたらよいか途方に暮れた。

She was at a loss about what to do.

彼女は次に何を言ったらよいか途方に暮れた。

She was at a loss for what to say next.