6
knock(verb, charge, attack, criticize, dispute)
6
revile(verb, attack, criticize, censure, condemn)
5
contest(verb, check, challenge, resist, deny)
5
call in question(verb, expression, idiom, oppose, dispute)
5
call into question(verb, expression, idiom, charge, oppose)
5
contravene(verb, break, check, disregard, oppose)
5
controvert(verb, oppose, dispute, challenge, deny)
5
disavow(verb, reject, deny, renounce, contradict)
5
disprove(verb, oppose, challenge, deny, question)
5
negative(verb, check, reject, oppose, criticize)
5
refute(verb, break, disregard, oppose, criticize)
5
reproach(verb, charge, attack, criticize, scorn)
5
resist(verb, break, disregard, oppose, criticize)
4
condemn(verb, charge, attack, criticize, scorn)
4
disaffirm(verb, break, check, disregard, oppose)
4
reprobate(verb, charge, attack, criticize, censure)
3
belie(verb, oppose, challenge, deny, undo)
3
blast(verb, charge, attack, criticize, dispute)
3
call to account(verb, expression, idiom, charge, accuse)
3
damn(verb, attack, criticize, censure, condemn)
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APASmart Define. (2015). impugn thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impugn/thesaurus/synonyms
ChicagoSmart Define. 2015. "impugn thesaurus" https://smartdefine.org/impugn/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, impugn thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impugn/thesaurus/synonyms>.
MLASmart Define. "impugn thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/impugn/thesaurus/synonyms>