6
summon(verb, support, order, force, charge)
6
withstand(verb, take, meet, attack, disregard)
5
try(verb, charge, advance, play, fight)
5
ask for(verb, expression, phrasal verb, dispute, request)
5
beard(verb, take, meet, disregard, oppose)
5
venture(noun, verb, take, set, meet)
5
accuse(verb, charge, indict)
5
assert(verb, state, hold, take, maintain)
5
attack(verb, stop, meet, oppose, halt)
5
battle(noun, verb, meet, attack, oppose)
5
buck(verb, support, take, meet, attack)
5
call in question(verb, expression, idiom, oppose, dispute)
5
clash(noun, verb, meet, attack, oppose)
5
complain(verb, oppose, fight, resist, protest)
5
complaint(noun, disagreement, question, opposition, protest)
5
confute(verb, oppose, deny, doubt, question)
5
contend(verb, take, meet, attack, run)
5
contention(noun, issue, disagreement, opposition, subject)
5
controvert(verb, oppose, dispute, deny, doubt)
5
counterwork(noun, verb, counteract, counteraction)
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APASmart Define. (2016). challenge thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/challenge/thesaurus/synonyms
ChicagoSmart Define. 2016. "challenge thesaurus" https://smartdefine.org/challenge/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, challenge thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/challenge/thesaurus/synonyms>.
MLASmart Define. "challenge thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/challenge/thesaurus/synonyms>