12
fallacious(adjective, wrong, fake, false, counterfeit)
12
misleading(adjective, wrong, fake, false, counterfeit)
12
slick(adjective, false, dishonest, cunning, sly)
12
unscrupulous(adjective, mean, bad, smooth, smart)
11
disloyal(adjective, false, dishonest, immoral, unreliable)
11
double-faced(adjective, dishonest, duplicitous)
11
machiavellian(adjective, dishonest, scheming)
11
shrewd(adjective, mean, smooth, dishonest, cunning)
11
traitorous(adjective, mean, smooth, smart, false)
11
underhanded(adjective, false, corrupt, dishonest, cunning)
11
untrue(noun, adjective, wrong, fake, false)
10
Janus-faced
10
delusive(adjective, mean, smooth, wrong, fake)
10
feline(adjective, feature, characteristic, animal, trait)
9
calculating(adjective, mean, smooth, dishonest, cunning)
9
fake(noun, adjective, wrong, deception, false)
9
furtive(adjective, mean, smooth, smart, dishonest)
9
plausible(false, misleading, illusory, deceptive)
9
rotten(adjective, dishonest, immoral, deceptive)
9
unfaithful(noun, adjective, false, wicked, dishonest)
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APASmart Define. (2016). deceitful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/deceitful/thesaurus/synonyms
ChicagoSmart Define. 2016. "deceitful thesaurus" https://smartdefine.org/deceitful/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, deceitful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/deceitful/thesaurus/synonyms>.
MLASmart Define. "deceitful thesaurus" 14 March 2016. Web. 24 September 2026. <https://smartdefine.org/deceitful/thesaurus/synonyms>