Word forms: 3rd person singular present tense impugns, present participle impugning, past tense, past participle impugned
VERB 指责,非难,质疑(他人的动机、诚信等) If you impugn something such as someone's motives or integrity, you imply that they are not entirely honest or honourable. 指责,非难,质疑(他人的动机、诚信等) [formal]
The Secretary's letter questions my veracity and impugns my motives. [VERB noun]
部长的来信怀疑我的诚实,质疑我的动机。
All I can hope is that the good name of the Bank will not be impugned in some way. [VERB noun]