心烦意乱在英语中可以翻译为 "distraught" 或 "frustrated". 这个词的来源可能源于拉丁语的 "frustrare"，意思是 "使灰心丧气，使沮丧"。

例句：

She was so distraught after her dog died that she couldn't stop crying for days. (她的狗死了以后她非常心烦意乱，哭了好几天都停不下来。)

He was feeling frustrated and helpless because he couldn't find a job. (他感到心烦意乱和无助，因为找不到工作。)