246 entries under doubtful topic. ×

10
fishy(adjective, honest, informal, unsettled)
10
hazy(adjective, rough, unsettled, vague)
10
tentative(adjective, open, weak, unsettled)
10
wishy-washy(adjective, open, weak, unstable)
9
distrustful(adjective, nervous, unsettled, hesitant)
9
fitful(adjective, unstable, irregular, unsettled)
9
incalculable(adjective, unreliable, changeable, insecure)
9
mysterious(adjective, dark, vague, dubious)
9
problematical(adjective, clear, certain, dubious)
9
touchy(adjective, difficult, delicate, passionate, nervous)
8
controversial(noun, adjective, unsettled, vague)
8
delicate(adjective, difficult, sensitive, unstable, ill)
8
diffident(adjective, awkward, nervous, hesitant)
8
enigmatic(adjective, obscure, rough, difficult)
8
faltering(adjective, weak, unsettled, hesitant)
8
fluctuating(adjective, weak, unstable, irregular)
8
open(adjective, certain, nervous, unstable)
8
rocky(adjective, weak, delicate, anxious, sensitive)
8
sensitive(adjective, weak, delicate, passionate, unstable)
8
undefined(adjective, vague, dubious, unknown)
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APASmart Define. (2016). uncertain thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/uncertain/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncertain thesaurus" https://smartdefine.org/uncertain/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, uncertain thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/uncertain/thesaurus/synonyms>.
MLASmart Define. "uncertain thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/uncertain/thesaurus/synonyms>