61 entries under variable topic. ×

5
unconvincing(adjective, great, extraordinary, unreasonable, amazing)
5
unsound(adjective, false, loose, uncertain, unpredictable)
5
vacillating(adjective, uncertain, nervous, doubtful, unsettled)
5
weak(adjective, great, extraordinary, uncertain, nervous)
4
deceptive(adjective, dishonest, unpredictable, unreliable, fickle)
4
erratic(adjective, weak, unusual, strange, loose)
4
false(adjective, dishonest, deceitful, unpredictable, unreliable)
4
irresponsible(adjective, dishonest, deceitful, unpredictable, unreliable)
4
unsafe(adjective, delicate, uncertain, unstable, dishonest)
3
underhand(adjective, evil, corrupt, dishonest, irregular)
2
capricious(adjective, weak, false, loose, uncertain)
2
changeable(adjective, unusual, uncertain, unstable, dishonest)
2
deceitful(adjective, false, corrupt, dishonest, unpredictable)
2
delusive(adjective, unpredictable, fickle, undependable)
2
fallible(adjective, unpredictable, unreliable, fickle)
2
hallucinatory(adjective, unpredictable, fickle, undependable)
2
inconstant(adjective, weak, false, loose, uncertain)
2
underhanded(adjective, dishonest, unpredictable, fickle, suspicious)
2
unfaithful(adjective, false, dishonest, deceitful, unpredictable)
2
untrue(adjective, false, dishonest, deceitful, unpredictable)
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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>