1
troubled(uncertain, nervous, hesitant, dubious, insecure)
1
unaccountable
1
unassured(adjective, uncertain, nervous, doubtful, hesitant)
1
unclear(adjective, uncertain, nervous, doubtful, hesitant)
1
unconfident(adjective, uncertain, nervous, doubtful, shaky)
1
unconfirmable
1
unconverted(adjective, false, dishonest, dubious, untrue)
1
unconvincible
1
uncredulous
1
undependable(adjective, uncertain, nervous, doubtful, hesitant)
1
undivinable
1
uneager(adjective, uncertain, shy, doubtful, hesitant)
1
unforeseeable
1
unlikely(uncertain, doubtful, unsure)
1
unorthodox
1
unpersuadable
1
unpersuaded
1
unpersuasible
1
unprovable
1
unreliable(adjective, false, uncertain, nervous, dishonest)
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APASmart Define. (2016). skeptical thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/skeptical/thesaurus/synonyms
ChicagoSmart Define. 2016. "skeptical thesaurus" https://smartdefine.org/skeptical/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, skeptical thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/skeptical/thesaurus/synonyms>.
MLASmart Define. "skeptical thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/skeptical/thesaurus/synonyms>