American English

Definition of impugn verb from the Oxford Advanced American Dictionary



    impugn something (formal)Verb Forms present simple I / you / we / they impugn
    he / she / it impugns
    past simple impugned
    -ing form impugning
    jump to other results
  1. 1to express doubts about whether something is right, honest, etc. synonym challenge
  2. 2 There were no real grounds for impugning the decision.
See the Oxford Advanced Learner's Dictionary entry: impugn