83 entries under challenge topic. ×

2
fluctuate(verb, dispute, doubt, question)
2
gainsay(verb, attack, oppose, fight)
2
give no credence(verb, expression, idiom, dispute)
2
harbor suspicion(verb, expression, dispute, doubt)
2
have qualms(verb, expression, dispute, doubt)
2
imagine(verb, dispute, doubt, question)
2
insinuate(verb, dispute, doubt, question)
2
misdoubt(verb, dispute, doubt, question)
2
misgive(verb, dispute, doubt, question)
2
not buy(verb, expression, dispute, doubt)
2
question(verb, oppose, dispute, doubt)
2
read differently(verb, expression, dispute, doubt)
2
shilly-shally(verb, dispute, doubt, question)
2
skepticize(verb, dispute, doubt, question)
2
smell a rat(verb, expression, idiom, dispute)
2
surmise(verb, dispute, doubt, question)
2
take dim view of(verb, expression, idiom, phrasal verb, dispute)
2
vacillate(verb, dispute, doubt, question)
2
waver(verb, dispute, doubt, question)
2
wonder at(verb, expression, phrasal verb, dispute)
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APASmart Define. (2015). call in question thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/call_in_question/thesaurus/synonyms
ChicagoSmart Define. 2015. "call in question thesaurus" https://smartdefine.org/call_in_question/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, call in question thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/call_in_question/thesaurus/synonyms>.
MLASmart Define. "call in question thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/call_in_question/thesaurus/synonyms>