95 entries under crooked topic. ×

4
reprobate(adjective, bad, wrong, evil, corrupt)
4
rotten(adjective, bad, wrong, evil, dishonest)
4
tricky(adjective, low, corrupt, dishonest, immoral)
4
venal(adjective, corrupt, dishonest, immoral, deceitful)
4
vile(adjective, bad, wrong, evil, corrupt)
3
cheating(adjective, bad, wrong, corrupt, dishonest)
3
disreputable(adjective, bad, wrong, dishonest, immoral)
3
impure(adjective, wrong, evil, corrupt, wicked)
3
nefarious(adjective, bad, wrong, evil, corrupt)
3
treacherous(adjective, low, dishonest, immoral, cunning)
3
two-faced(adjective, bad, wrong, corrupt, dishonest)
3
underhanded(adjective, corrupt, dishonest, immoral, cunning)
3
unjust(adjective, rude, wicked, dishonest, immoral)
2
faithless(adjective, dishonest, immoral, rotten, fickle)
2
foul(adjective, bad, wrong, evil, dishonest)
2
fraudulent(adjective, corrupt, dishonest, immoral, cunning)
2
indirect(dishonest, cunning, deceitful, sneaky)
2
knavish(adjective, dishonest, immoral, rotten, untrustworthy)
2
mean(adjective, bad, wrong, evil, corrupt)
2
obscene(adjective, wrong, evil, corrupt, wicked)
11 years ago|14k views|share |citing 
APASmart Define. (2015). unethical thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unethical/thesaurus/synonyms
ChicagoSmart Define. 2015. "unethical thesaurus" https://smartdefine.org/unethical/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unethical thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unethical/thesaurus/synonyms>.
MLASmart Define. "unethical thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/unethical/thesaurus/synonyms>