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Related to impugn: Impune, gainsaid
tr.v. im·pugned, im·pugn·ing, im·pugns
To attack as false or questionable; challenge in argument: impugn a political opponent's record.
[Middle English impugnen, from Old French impugner, from Latin impugnāre : in-, against; see in-2 + pugnāre, to fight; see peuk- in Indo-European roots.]
(tr) to challenge or attack as false; assail; criticize
[C14: from Old French impugner, from Latin impugnāre to fight against, attack, from im- + pugnāre to fight]
impugnation, imˈpugnment n
1. to challenge as false; cast doubt upon: The lawyer impugned the witness's story.
2. Archaic. to vilify.
[1325–75; Middle English < Middle French impugner < Latin impugnāre to attack =im- im-1 + pugnāre to fight, derivative of pugnus fist]
Past participle: impugned
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|Verb||1.||impugn - attack as false or wrong|
challenge - issue a challenge to; "Fischer challenged Spassky to a match"