356 entries under adjective topic. ×

58
doubtful(noun, clear, open, great)
48
questionable(noun, clear, great, rough)
38
uncertain(noun, clear, open, rough)
30
suspicious(unusual, strange, uncertain, nervous)
26
unreliable(delicate, uncertain, true, nervous)
25
shady(unusual, strange, corrupt, uncertain)
21
unsure(clear, open, rough, delicate)
20
debatable(noun, open, uncertain, doubtful)
20
suspect(verb, great, extraordinary, uncertain)
20
untrustworthy(uncertain, nervous, dishonest, doubtful)
20
vague(clear, open, rough, uncertain)
17
fishy(great, extraordinary, unusual, strange)
17
precarious(doubtful, unreliable, tricky, insecure)
17
undecided(noun, open, certain, doubt)
17
ambiguous(clear, open, rough, delicate)
16
disputable(noun, open, uncertain, doubtful)
16
indefinite(open, obscure, rough, uncertain)
16
problematic(clear, open, rough, delicate)
15
unlikely(open, slight, uncertain, doubtful)
15
unsettled(noun, open, rough, delicate)
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APASmart Define. (2016). dubious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dubious/thesaurus/synonyms
ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 22 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>