5
fibbing(adjective, wrong, false, dishonest, deceitful)
5
hollow(noun, adjective, fake, false, counterfeit)
4
crafty(adjective, false, dishonest, cunning, deceitful)
4
crooked(adjective, false, dishonest, deceitful, lying)
4
disingenuous(adjective, false, dishonest, deceitful, falsehood)
4
dissembling(noun, adjective, wrong, false, dishonest)
4
equivocating(adjective, wrong, false, dishonest, deceitful)
4
erroneous(adjective, wrong, fake, counterfeit, dishonest)
4
faithless(adjective, false, dishonest, deceitful, falsehood)
4
fake(noun, adjective, wrong, counterfeit, dishonest)
4
intentionally untrue(expression, idiom)
4
knavish
4
misleading(adjective, wrong, fake, false, counterfeit)
4
prevaricating(adjective, wrong, false, dishonest, deceitful)
4
sly(adjective, false, dishonest, deceitful, dubious)
4
truthless
4
underhand(adjective, false, dishonest, cunning, deceitful)
4
unfair(adjective, false, dishonest, deceitful, lying)
4
unfounded(adjective, wrong, fake, counterfeit, dishonest)
4
wrong(adjective, fake, false, counterfeit, dishonest)
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APASmart Define. (2015). mendacious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/mendacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "mendacious thesaurus" https://smartdefine.org/mendacious/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, mendacious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/mendacious/thesaurus/synonyms>.
MLASmart Define. "mendacious thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/mendacious/thesaurus/synonyms>