150 entries under question topic. ×

1
throw the book at(verb, expression, idiom, phrasal verb, criticize)
1
thumb nose at(verb, expression, idiom, phrasal verb, criticize)
1
traduce(verb, criticize, dispute, challenge, doubt)
1
vacillate(verb, dispute, challenge, doubt)
1
waver(verb, dispute, challenge, doubt)
1
wonder at(verb, expression, dispute, challenge, doubt)
1
zap(verb, criticize, dispute, challenge, doubt)
1
zing(verb, criticize, dispute, challenge, doubt)
0
agitate(verb, challenge, contest, query)
0
altercate(verb, challenge, deny, contest)
0
argue(verb, oppose, criticize, challenge)
0
asked for(expression, dispute, claim)
0
bicker(verb, challenge, contest, query)
0
bump heads(verb, expression, challenge, deny, doubt)
0
canvass(verb, challenge, contest, query)
0
contend(verb, challenge, contest, query)
0
discept(verb, challenge, deny, contest)
0
discuss(verb, challenge, contest, query)
0
hassle(verb, challenge, contest, query)
0
have doubts(verb, expression, discredit, hesitate)
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APASmart Define. (2015). impugn thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/impugn/thesaurus/synonyms
ChicagoSmart Define. 2015. "impugn thesaurus" https://smartdefine.org/impugn/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, impugn thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/impugn/thesaurus/synonyms>.
MLASmart Define. "impugn thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/impugn/thesaurus/synonyms>