92 entries under dubious topic. ×

8
funny(adjective, unusual, strange, suspect)
8
uncertain(adjective, honest, doubtful, unsettled, vague)
8
unreliable(adjective, uncertain, dishonest, doubtful, deceitful)
6
crafty(adjective, false, corrupt, dishonest, cunning)
6
deceitful(adjective, fake, false, counterfeit, corrupt)
6
sly(adjective, corrupt, dishonest, cunning, deceitful)
6
treacherous(adjective, false, corrupt, dishonest, immoral)
6
unprincipled(adjective, bad, wrong, false, corrupt)
5
equivocal(adjective, honest, uncertain, doubtful)
4
cunning(adjective, smooth, false, dishonest, deceitful)
4
debatable(adjective, uncertain, doubtful, shaky)
4
foxy(adjective, dishonest, deceitful, suspicious)
4
indefinite(uncertain, doubtful, shaky, unlikely)
4
insidious(adjective, dishonest, cunning, deceitful)
4
mysterious(adjective, unusual, strange, uncertain, doubtful)
4
not kosher(expression, suspect)
4
peculiar(adjective, unusual, strange, suspect)
4
problematic(adjective, uncertain, doubtful, unsettled, shaky)
4
wily(adjective, false, dishonest, cunning, deceitful)
3
ambiguous(adjective, uncertain, doubtful, shaky)
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APASmart Define. (2016). shady thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/shady/thesaurus/synonyms
ChicagoSmart Define. 2016. "shady thesaurus" https://smartdefine.org/shady/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, shady thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/shady/thesaurus/synonyms>.
MLASmart Define. "shady thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/shady/thesaurus/synonyms>