perturb
verb (formal)- perturb somebody
to make somebody worried or anxious synonym alarm使焦虑;使不安 Her sudden appearance did not seem to perturb him in the least. 她的突然出现似乎一点也没有令他不安。 I was perturbed by his lack of interest. 我对他缺乏兴趣感到不安。
Word Originlate Middle English: from Old French pertourber, from Latin perturbare, from per- ‘completely’ + turbare ‘disturb’.