64 entries under insincere topic. ×

18
disingenuous(adjective, false, dishonest, falsehood, slick)
18
counterfeit(noun, adjective, fake, deception, false)
17
designing(adjective, mean, smooth, smart, false)
17
guileful(adjective, mean, smooth, wrong, smart)
17
mendacious(noun, adjective, wrong, fake, honest)
16
lying(noun, adjective, wrong, fake, honest)
16
sneaky(adjective, mean, smooth, smart, false)
14
deceiving(adjective, wrong, fake, deception, false)
14
faithless(noun, adjective, false, dishonest, immoral)
14
spurious(adjective, wrong, fake, false, counterfeit)
14
untruthful(noun, adjective, wrong, fake, honest)
12
fallacious(adjective, wrong, fake, false, counterfeit)
12
misleading(adjective, wrong, fake, false, counterfeit)
12
slick(adjective, false, dishonest, cunning, sly)
11
underhanded(adjective, false, corrupt, dishonest, cunning)
10
delusive(adjective, mean, smooth, wrong, fake)
10
feline(adjective, feature, characteristic, animal, trait)
9
furtive(adjective, mean, smooth, smart, dishonest)
8
artificial(adjective, fake, false, counterfeit, sham)
8
indirect(adjective, false, dishonest, cunning, shrewd)
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APASmart Define. (2016). deceitful thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/deceitful/thesaurus/synonyms
ChicagoSmart Define. 2016. "deceitful thesaurus" https://smartdefine.org/deceitful/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, deceitful thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/deceitful/thesaurus/synonyms>.
MLASmart Define. "deceitful thesaurus" 14 March 2016. Web. 1 October 2026. <https://smartdefine.org/deceitful/thesaurus/synonyms>