3
differ(verb, meet, oppose, ignore, fight)
3
disapprove(verb, oppose, criticize, dislike, condemn)
3
disprove(verb, oppose, dislike, condemn, blame)
3
examination(noun, inquiry)
3
flout(verb, meet, disregard, oppose, ignore)
3
gamble(verb, take)
3
hit(noun, verb, state, hold, take)
3
hit up(verb, expression, state, hold, take)
3
interference(noun, opposition)
3
invalidate(verb, discredit, contradict, refute, disprove)
3
invite(noun, call, request, offer, suggestion)
3
knock(noun, verb, state, hold, take)
3
lay claim to(verb, expression, idiom, phrasal verb, state)
3
make a stand(verb, expression, idiom, take, meet)
3
oppugn(verb, meet, attack, oppose, fight)
3
order(noun, verb, take, force, charge)
3
pass strictures on(expression, criticize)
3
petition(noun, verb, order, go, force)
3
postulate(verb, state, hold, take, order)
3
probe(verb, examine, request, question, seek)
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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>