150 entries under question topic. ×

2
stick it out(expression, idiom, get, dispute, provoke)
2
stimulate(verb, get, dispute, provoke, try)
2
summon(verb, get, dispute, provoke, try)
2
tax(verb, get, charge, criticize, dispute)
2
test(verb, get, dispute, provoke, try)
2
throw down the gauntlet(expression, idiom, get, dispute, provoke)
2
trash(verb, attack, criticize, dispute, challenge)
2
try(verb, get, charge, dispute, provoke)
2
vindicate(verb, get, dispute, provoke, demand)
1
be apprehensive of(verb, dispute, challenge, doubt)
1
be curious(verb, dispute, challenge, doubt)
1
be dubious(verb, dispute, challenge, doubt)
1
be in a quandary(verb, dispute, challenge, doubt)
1
be puzzled(verb, dispute, challenge, doubt)
1
be uncertain(verb, dispute, challenge, doubt)
1
be undetermined(verb, dispute, challenge, doubt)
1
beard(verb, get, dispute, provoke, demand)
1
brawl(verb, challenge, deny, doubt)
1
cast aspersions upon(verb, expression, idiom, phrasal verb, criticize)
1
cast doubt on(expression, idiom, charge, doubt)
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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>