224 entries under verb topic. ×

47
distrust(noun, trouble, feeling, concern)
40
question(noun, trouble, reject, disregard)
33
mistrust(noun, trouble, reject, disregard)
27
suspect(dispute, challenge, think, question)
22
fear(noun, upset, worry, concern)
20
scruple(noun, activity, stop, upset)
19
discredit(noun, decline, reject, disregard)
19
dispute(noun, trouble, oppose, difficulty)
17
query(noun, activity, trouble, concern)
17
suspicion(noun, trouble, worry, concern)
16
challenge(noun, oppose, dispute, difficulty)
13
disbelieve(decline, reject, disregard, oppose)
13
vacillate(activity, dispute, stick, challenge)
12
waver(activity, dispute, stick, challenge)
11
hesitate(activity, dispute, stick, challenge)
9
wonder(noun, trouble, consider, concern)
8
misdoubt(noun, dispute, challenge, certain)
8
worry(noun, trouble, concern, distress)
7
contest(dispute, challenge, question, argue)
6
demur(noun, stop, dispute, difficulty)
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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>