6
chancy(adjective, clear, delicate, certain, uncertain)
6
doubtable(adjective, uncertain, doubtful, unsettled, suspicious)
6
fickle(adjective, dishonest, deceitful, unpredictable, unreliable)
6
funny(adjective, unusual, strange, odd, suspect)
6
leery(adjective, suspicious)
6
preposterous(adjective, extraordinary, fantastic, amazing, ridiculous)
6
reluctant(adjective, slow, uncertain, shy, doubtful)
6
ridiculous(adjective, doubtful, ridiculous, suspicious)
6
treacherous(adjective, corrupt, dishonest, deceitful, unpredictable)
6
unpredictable(adjective, weak, loose, uncertain, irregular)
5
queer(adjective, unusual, strange, fantastic, odd)
5
borderline(adjective, clear, open, delicate, certain)
5
clouded(adjective, clear, certain, uncertain, doubtful)
5
conjectural(adjective, doubtful, vague, unsure)
5
cynical(adjective, uncertain, hesitant, suspicious, wary)
5
devious(adjective, false, unusual, uncertain, dishonest)
5
dishonest(adjective, false, corrupt, deceitful, unreliable)
5
dishonorable(adjective, disreputable)
5
disinclined(adjective, vague, unclear, ambiguous, averse)
5
faithless(adjective, uncertain, dishonest, unsettled, hesitant)
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APASmart Define. (2016). dubious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/dubious/thesaurus/synonyms
ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 24 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>