255 entries under adjective topic. ×

10
deceptive(smooth, fake, false, counterfeit)
10
feigned(fake, unusual, counterfeit, true)
10
sham(noun, fake, false, counterfeit)
9
affected(smooth, fake, delicate, false)
9
artful
9
dissembling(smooth, false, dishonest, deceitful)
9
empty(worthless, ineffective, superficial, throwaway)
9
fraudulent(fake, false, counterfeit, dishonest)
9
lying(smooth, fake, false, counterfeit)
9
pretended(fake, false, counterfeit, true)
9
shifty(false, dishonest, cunning, deceitful)
9
slick(smooth, offensive, coarse, dishonest)
9
smarmy(smooth, offensive, coarse, excessive)
9
unctuous(smooth, false, deceitful, lying)
9
unnatural(fake, counterfeit, regular, hollow)
8
crooked(false, dishonest, deceitful, lying)
8
meretricious(fake, counterfeit, sham, phony)
8
pharisaic
8
phony(fake, false, unusual, counterfeit)
8
sanctimonious(smooth, offensive, coarse, excessive)
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APASmart Define. (2016). insincere thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/insincere/thesaurus/synonyms
ChicagoSmart Define. 2016. "insincere thesaurus" https://smartdefine.org/insincere/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, insincere thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/insincere/thesaurus/synonyms>.
MLASmart Define. "insincere thesaurus" 14 March 2016. Web. 29 September 2026. <https://smartdefine.org/insincere/thesaurus/synonyms>