3
underhanded(adjective, false, corrupt, wicked, dishonest)
3
unprincipled(adjective, false, corrupt, dishonest, deceitful)
3
unscrupulous(adjective, false, corrupt, dishonest, deceitful)
2
artificial(adjective, fake, counterfeit, sham, phony)
2
bluffing(adjective, false, dishonest, deceitful, lying)
2
concocted(adjective, wrong, fake, counterfeit, dishonest)
2
deceiving(adjective, wrong, fake, false, counterfeit)
2
delusive(adjective, wrong, fake, false, counterfeit)
2
delusory(adjective, wrong, false, dishonest, cunning)
2
dirty(adjective, corrupt, dishonest, crooked, unfair)
2
dissembling(noun, adjective, wrong, false, dishonest)
2
falsehearted(fickle, untrustworthy, unprincipled, dirty-dealing)
2
faulty(adjective, wrong, fake, counterfeit, dishonest)
2
guileful(adjective, wrong, false, dishonest, cunning)
2
imaginary(adjective, wrong, fake, false, counterfeit)
2
imprecise(adjective, wrong, false, dishonest, incorrect)
2
invalid(adjective, wrong, fake, counterfeit, dishonest)
2
low(adjective, corrupt, dishonest, crooked, unfair)
2
made-up(adjective, fake, counterfeit, sham, phony)
2
mock(adjective, fake, counterfeit, sham, phony)
11 years ago|14k views|share |citing 
APASmart Define. (2015). untruthful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/untruthful/thesaurus/synonyms
ChicagoSmart Define. 2015. "untruthful thesaurus" https://smartdefine.org/untruthful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, untruthful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/untruthful/thesaurus/synonyms>.
MLASmart Define. "untruthful thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/untruthful/thesaurus/synonyms>