2
phony(noun, adjective, wrong, fake, counterfeit)
2
prevaricating(adjective, wrong, false, dishonest, deceitful)
2
shabby(adjective, corrupt, dishonest, crooked, unfair)
2
sham(adjective, wrong, fake, false, counterfeit)
2
slick(adjective, false, dishonest, deceitful, dubious)
2
thieving
2
two-timing(adjective, wrong, false, dishonest, deceitful)
2
unctuous(adjective, false, deceitful, lying, fraudulent)
2
unreal(adjective, wrong, fake, counterfeit, dishonest)
2
unreliable(adjective, wrong, false, dishonest, deceitful)
2
unsound(adjective, wrong, fake, false, counterfeit)
1
Janus-faced
1
Machiavellian
1
apocryphal(adjective, wrong, fake, false, counterfeit)
1
beguiling(adjective, wrong, fake, false, counterfeit)
1
bent(adjective, fake, false, counterfeit, sham)
1
calculating
1
casuistic(adjective, wrong, fake, counterfeit, dishonest)
1
changeful(adjective, false, dishonest, dubious, fickle)
1
committing perjury(expression, adjective, wrong, false, dishonest)
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>