4
kindle(verb, support, charge, cause, disturb)
4
obstinacy(noun, opposition)
4
poser(noun, question, puzzle, mystery, riddle)
4
protestation(noun, support, act, dislike, doubt)
4
rebuttal(noun, confutation)
4
recalcitrance(noun, order, disregard, command, opposition)
4
refute(verb, oppose, deny, doubt, question)
4
repulse(verb, disregard, oppose, resist, frustrate)
4
requisition(verb, state, hold, take, order)
4
revolt(noun, verb, order, disregard, ignore)
4
squawk(noun, verb, phrasal verb, support, act)
4
stand(noun, verb, take, meet, oppose)
4
suspect(verb, dispute, doubt, question, hesitate)
4
tackle(verb, meet, grab, confront)
4
take exception to(verb, expression, idiom, discourage, disapprove)
4
traverse(verb, support, take, meet, attack)
4
vie with(verb, expression, oppose, fight, match)
4
whet(verb, support, charge, cause, disturb)
3
front(verb, advance, meet, disregard, oppose)
3
accost(verb, stop, take, go, meet)
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APASmart Define. (2016). challenge thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/challenge/thesaurus/synonyms
ChicagoSmart Define. 2016. "challenge thesaurus" https://smartdefine.org/challenge/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, challenge thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/challenge/thesaurus/synonyms>.
MLASmart Define. "challenge thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/challenge/thesaurus/synonyms>