5
immoral(adjective, corrupt, dishonest, crooked, shady)
5
pinchbeck(noun, deception)
5
sneaky(adjective, false, corrupt, dishonest, cunning)
5
supposititious(adjective, deception, counterfeit, true)
5
surreptitious(adjective, deception, dishonest, cunning, deceitful)
5
unfair(adjective, false, corrupt, dishonest, cunning)
4
base(adjective, corrupt, dishonest, immoral, rotten)
4
deceiving(adjective, wrong, fake, false, counterfeit)
4
dishonourable
4
disreputable(adjective, low, false, corrupt, deceitful)
4
dubious
4
hollow(adjective, smooth, fake, false, counterfeit)
4
meretricious(adjective, fake, deception, counterfeit, sham)
4
rotten(adjective, dishonest, immoral, untrustworthy, crooked)
4
scheming(adjective, false, dishonest, deceitful, dubious)
4
sharp
4
slippery(adjective, false, dishonest, cunning, deceitful)
4
specious(adjective, wrong, fake, false, counterfeit)
4
suppositious(adjective, wrong, fake, false, counterfeit)
4
swindling(adjective, fake, false, deceitful, lying)
11 years ago|15k views|share |citing 
APASmart Define. (2015). fraudulent thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fraudulent/thesaurus/synonyms
ChicagoSmart Define. 2015. "fraudulent thesaurus" https://smartdefine.org/fraudulent/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, fraudulent thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fraudulent/thesaurus/synonyms>.
MLASmart Define. "fraudulent thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/fraudulent/thesaurus/synonyms>