101 entries under challenge topic. ×

1
beat(verb, break, press, oppose, crush)
1
belie(verb, oppose, deny, reverse)
1
box(verb, meet, attack, hit, dispute)
1
brush with(expression, meet, attack, dispute)
1
call in question(verb, expression, idiom, oppose)
1
carry on war(expression, idiom, meet, attack, dispute)
1
clash(verb, meet, attack, oppose, fight)
1
contravene(verb, check, oppose, correct, halt)
1
controvert(verb, oppose, deny, reverse)
1
dare(verb, oppose, fight, deny)
1
denounce(verb, oppose, fight, face)
1
deny(verb, check, oppose, block, hinder)
1
differ(verb, oppose, fight, deny)
1
disaffirm(verb, check, oppose, resist)
1
disclaim(verb, oppose, delay, dislike)
1
disprove(verb, oppose, deny, reverse)
1
do battle(expression, meet, attack, dispute)
1
exchange blows(expression, meet, attack, dispute)
1
flare up(expression, meet, attack, dispute)
1
gainsay(verb, check, oppose, resist)
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APASmart Define. (2015). buck thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/buck/thesaurus/synonyms
ChicagoSmart Define. 2015. "buck thesaurus" https://smartdefine.org/buck/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, buck thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/buck/thesaurus/synonyms>.
MLASmart Define. "buck thesaurus" 23 December 2015. Web. 25 September 2026. <https://smartdefine.org/buck/thesaurus/synonyms>