94 entries under deceitful topic. ×

7
covert(adjective, dishonest, secret, clandestine)
7
fraudulent(adjective, false, corrupt, dishonest, immoral)
7
secret(adjective, dishonest, cunning, clandestine)
7
surreptitious(adjective, dishonest, crafty, clandestine)
7
unethical(adjective, corrupt, dishonest, immoral, cunning)
7
unscrupulous(adjective, mean, base, false, corrupt)
6
double-dealing(adjective, mean, base, false, corrupt)
6
insincere(adjective, false, dishonest, cunning)
6
shady(adjective, false, corrupt, dishonest, immoral)
6
slippery(adjective, false, corrupt, dishonest, cunning)
6
stealthy(adjective, dishonest, cunning, clandestine)
6
undercover(dishonest, cunning, secret, hidden)
5
calculating(adjective, dishonest, tricky, crafty)
5
deceptive(adjective, bad, false, dishonest, cunning)
5
dirty(adjective, corrupt, dishonest, crooked)
5
dishonorable(adjective, mean, bad, base, dishonest)
5
foxy(adjective, false, dishonest, cunning)
5
immoral(adjective, low, corrupt, dishonest)
5
indirect(adjective, honest, false, dishonest, cunning)
5
scheming(adjective, false, corrupt, dishonest, cunning)
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APASmart Define. (2016). underhanded thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/underhanded/thesaurus/synonyms
ChicagoSmart Define. 2016. "underhanded thesaurus" https://smartdefine.org/underhanded/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, underhanded thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/underhanded/thesaurus/synonyms>.
MLASmart Define. "underhanded thesaurus" 22 January 2016. Web. 27 September 2026. <https://smartdefine.org/underhanded/thesaurus/synonyms>