87 entries under challenge topic. ×

5
rebut(verb, decline, reject, oppose, refuse)
4
confute(verb, oppose, deny, expose)
3
altercate(verb, deny, doubt, question)
3
quarrel(verb, deny, doubt, question)
2
assail(verb, attack, criticize, fight, dispute)
2
attack(verb, oppose, criticize, fight, dispute)
2
call in question(expression, idiom, attack, oppose, fight)
2
call into question(expression, idiom, criticize, deny)
2
contend(verb, oppose, crush, deny)
2
counteract(verb, break, check, disregard, oppose)
2
criticize(verb, decline, reject, oppose, dispute)
2
debate(verb, attack, oppose, fight)
2
doubt(verb, decline, reject, dispute, refuse)
2
fly in the face of(verb, expression, idiom, attack, oppose)
2
question(verb, criticize, dispute, deny)
2
take on(expression, attack, oppose, fight)
1
argue(verb, attack, oppose, fight)
1
blast(criticize, dispute, doubt, question)
1
brawl(verb, deny, doubt, question)
1
break(disregard, oppose, criticize, expose)
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APASmart Define. (2015). gainsay thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/gainsay/thesaurus/synonyms
ChicagoSmart Define. 2015. "gainsay thesaurus" https://smartdefine.org/gainsay/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, gainsay thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/gainsay/thesaurus/synonyms>.
MLASmart Define. "gainsay thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/gainsay/thesaurus/synonyms>