378 entries under adjective topic. ×

6
touch-and-go(shaky, unclear, unlikely, questionable)
6
unbelieving(uncertain, careful, hesitant, suspicious)
6
unconfident(uncertain, nervous, shaky, dubious)
6
unconvinced(uncertain, nervous, hesitant, dubious)
6
unimaginable(extraordinary, amazing, dubious, unlikely)
6
untrustworthy(weak, uncertain, nervous, sensitive)
6
vacillant
5
agnostic(uncertain, hesitant, unsure, believing)
5
confused(weak, obscure, dark, uncertain)
5
contingent(delicate, uncertain, unstable, shaky)
5
disenchanted(person, shameless, negative emotions)
5
disillusioned(person, shameless, negative emotions)
5
faltering(weak, uncertain, awkward, shy)
5
flimsy(great, extraordinary, unreasonable, amazing)
5
hazardous(open, obscure, delicate, uncertain)
5
hypothetical(uncertain, dubious, imaginary, theoretical)
5
inconclusive(clear, certain, uncertain, unclear)
5
jaundiced(person, shameless, negative emotions)
5
open to question(expression, idiom, uncertain, dubious)
5
puzzled(uncertain, hesitant, confused, unsure)
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APASmart Define. (2016). doubtful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms
ChicagoSmart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, doubtful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>.
MLASmart Define. "doubtful thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms>