81 entries under doubtful topic. ×

31
suspicious(adjective, person, uncertain, negative, nervous)
18
doubting(adjective, uncertain, shy, dishonest)
17
cynical(adjective, person, attitude, uncertain, negative)
17
incredulous(adjective, belief, wary, mistrustful)
16
unbelieving(adjective, false, belief, uncertain, negative)
14
distrustful(adjective, person, uncertain, negative, nervous)
14
dubious(adjective, certain, doubt, uncertain, nervous)
12
questioning(adjective, belief, uncertain, nervous)
10
uncertain(adjective, certain, doubt, nervous)
9
quizzical(adjective, confused, wary, mistrustful)
7
mistrustful(adjective, uncertain, nervous, dubious)
7
unconvinced(adjective, uncertain, nervous, unsettled)
7
unsure(adjective, certain, doubt, uncertain, nervous)
6
freethinking(adjective, leery, irreligion, disbelieving)
6
hesitant(adjective, uncertain, nervous, shy)
5
agnostic(adjective, uncertain, hesitant, dubious)
5
in doubt(expression, adjective, idiom, certain, doubt)
4
hesitating(adjective, uncertain, shy, hesitant)
3
indecisive(adjective, uncertain, nervous, shy)
3
wavering(adjective, uncertain, nervous, shy, dishonest)
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APASmart Define. (2016). skeptical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/skeptical/thesaurus/synonyms
ChicagoSmart Define. 2016. "skeptical thesaurus" https://smartdefine.org/skeptical/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, skeptical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/skeptical/thesaurus/synonyms>.
MLASmart Define. "skeptical thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/skeptical/thesaurus/synonyms>