7
confusion(noun, trouble, concern, difficulty, anxiety)
7
contest(verb, dispute, challenge, question, argue)
7
disquiet(noun, trouble, worry, concern, anxiety)
7
reluctance(noun, delay, anxiety, weakness, shame)
7
unbelief(noun, anxiety, shame, uncertainty, fear)
6
apprehensiveness(noun, worry, anxiety, fear, uneasiness)
6
cynicism(noun, uncertainty, impression, guess, gloom)
6
demur(noun, verb, stop, dispute, difficulty)
6
diffidence(noun, anxiety, uncertainty, lack, reserve)
6
fluctuate(verb, stop, dispute, challenge, question)
6
impugn(verb, dispute, challenge, deny, question)
6
indecision(noun, trouble, concern, delay, anxiety)
6
leeriness(noun, uncertainty, trust, dissent, reservation)
6
perplexity(noun, trouble, fix, concern, difficulty)
5
ambiguity(noun, trouble, concern, anxiety, confusion)
5
be suspicious of(verb, expression, idiom, suspect, distrust)
5
call in question(verb, expression, idiom, oppose, dispute)
5
concern(noun, trouble, worry, distress, anxiety)
5
deny(verb, decline, reject, dispute, challenge)
5
difficulty(noun, fix, anxiety, issue, dislike)
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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>