157 entries under question topic. ×

8
misdoubt(noun, verb, dispute, challenge, certain)
8
problem(noun, feeling, concern, difficulty, anxiety)
8
quandary(noun, trouble, fix, feeling, concern)
7
confusion(noun, trouble, concern, difficulty, anxiety)
7
contest(verb, dispute, challenge, argue)
6
demur(noun, verb, stop, dispute, difficulty)
6
fluctuate(verb, stop, dispute, challenge)
6
impugn(verb, dispute, challenge, deny)
6
perplexity(noun, trouble, fix, concern, difficulty)
5
call in question(verb, expression, idiom, oppose, dispute)
5
concern(noun, trouble, worry, distress, anxiety)
5
deny(verb, decline, reject, dispute, challenge)
5
objection(noun, issue, dislike, disagreement)
5
oppose(verb, decline, reject, dispute, refuse)
4
be dubious(verb, expression, idiom, dispute, challenge)
4
be uncertain(verb, dispute, challenge, suspect)
4
discount(verb, disregard, ignore, overlook)
4
enigma(issue, uncertainty, subject, problem)
4
have reservations(verb, expression, suspect, distrust)
4
misgive(verb, dispute, challenge, suspect)
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APASmart Define. (2016). doubt thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/doubt/thesaurus/synonyms
ChicagoSmart Define. 2016. "doubt thesaurus" https://smartdefine.org/doubt/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, doubt thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/doubt/thesaurus/synonyms>.
MLASmart Define. "doubt thesaurus" 2 March 2016. Web. 21 September 2026. <https://smartdefine.org/doubt/thesaurus/synonyms>