Synonyms|930Antonyms|415|Broader|15Narrower|12Related|3.8k

165 entries under doubtful topic. ×

9
indeterminate(adjective, clear, obscure, rough, certain)
9
insecure(adjective, delicate, uncertain, nervous, unstable)
9
mistrustful(adjective, uncertain, nervous, vague)
9
open(adjective, uncertain, nervous, unstable)
9
sceptical
9
unstable(adjective, delicate, uncertain, nervous, dishonest)
8
controversial(noun, adjective, uncertain, hot)
7
far-fetched(adjective, hard, uncertain, unclear)
7
irresolute(adjective, uncertain, hesitant, unsure)
7
slippery(adjective, delicate, uncertain, unstable, dishonest)
7
trustless(adjective, uncertain, dishonest, deceitful)
7
unbelievable(adjective, great, extraordinary, unreasonable, amazing)
7
wavering(adjective, open, uncertain, nervous, dishonest)
6
absurd(adjective, ridiculous, improbable)
6
chancy(adjective, clear, delicate, certain, uncertain)
6
doubtable(adjective, uncertain, unsettled, suspicious)
6
reluctant(adjective, slow, uncertain, shy)
6
ridiculous(adjective, ridiculous, suspicious)
6
unpredictable(adjective, weak, loose, uncertain, irregular)
5
borderline(adjective, clear, open, delicate, certain)
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ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 26 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>