ぼう然と absent-mindedly;〔特に表情が〕vacantly
- 自宅の焼け跡にぼう然と立ち尽くしていた
- He stood by the charred ruins of his house in a state of shock.
- ぼう然としてどうしたらよいかわからなかった
- I was 「at a loss [at my wits' end] what to do.
- ぼう然とした顔つきで
- with 「an absent-minded [a vacant] look on one's face
- 父の死の知らせに茫然自失した
- She was stunned by the news of her father's death.