37
hypocritical(adjective, smooth, false, coarse, dishonest)
30
false(adjective, fake, unusual, counterfeit, dishonest)
22
dishonest(adjective, fake, false, counterfeit, dishonest)
18
counterfeit(adjective, fake, false, dishonest, sham)
18
deceitful(adjective, fake, false, counterfeit, dishonest)
17
artificial(adjective, fake, false, counterfeit, true)
12
disingenuous(adjective, honest, false, restrained, dishonest)
12
double-dealing(adjective, false, dishonest, cunning, deceitful)
12
hollow(adjective, fake, false, counterfeit, dishonest)
11
treacherous(adjective, false, dishonest, cunning, deceitful)
11
crafty(adjective, false, dishonest, cunning, deceitful)
10
devious(adjective, restrained, dishonest, deceitful, lying)
10
duplicitous(adjective, false, dishonest, deceitful, lying)
10
fake(adjective, false, counterfeit, dishonest, fantastic)
10
mendacious(adjective, fake, false, counterfeit, dishonest)
10
perfidious(adjective, false, dishonest, deceitful, lying)
10
pretentious(adjective, counterfeit, restrained, dishonest, affected)
10
sly(adjective, false, dishonest, deceitful, tricky)
10
two-faced(adjective, smooth, false, dishonest, cunning)
10
ambidextrous(adjective, honest, dishonest, deceitful, lying)
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APASmart Define. (2016). insincere thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/insincere/thesaurus/synonyms
ChicagoSmart Define. 2016. "insincere thesaurus" https://smartdefine.org/insincere/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, insincere thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/insincere/thesaurus/synonyms>.
MLASmart Define. "insincere thesaurus" 14 March 2016. Web. 22 September 2026. <https://smartdefine.org/insincere/thesaurus/synonyms>