95 entries under crooked topic. ×

2
perfidious(adjective, dishonest, immoral, deceitful, rotten)
2
shameful(adjective, bad, wrong, evil, dishonest)
2
shameless(adjective, bad, wrong, evil, corrupt)
2
sly(adjective, corrupt, dishonest, immoral, cunning)
2
sordid(adjective, corrupt, dishonest, greedy)
2
tainted(adjective, dishonest, immoral, rotten, untrustworthy)
2
untrustworthy(adjective, dishonest, immoral, rotten, fickle)
1
bent(adjective, corrupt, dishonest, immoral, deceitful)
1
bribable(adjective, dishonest, immoral, rotten, untrustworthy)
1
crafty(corrupt, dishonest, cunning, deceitful)
1
debauched(adjective, wrong, corrupt, wicked, dishonest)
1
deceptive(dishonest, cunning, deceitful, sneaky)
1
double-dealing(adjective, corrupt, dishonest, immoral, rotten)
1
duplicitous(dishonest, cunning, deceitful, fickle, untrustworthy)
1
exploiting(adjective, dishonest, immoral, rotten, untrustworthy)
1
extortionate(adjective, dishonest, immoral, rotten, untrustworthy)
1
fast and loose(expression, adjective, idiom, dishonest, immoral)
1
fixed(adjective, dishonest, immoral, rotten, untrustworthy)
1
gone to the dogs(expression, adjective, idiom, dishonest, immoral)
1
inconstant(adjective, dishonest, immoral, rotten, fickle)
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APASmart Define. (2015). unethical thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unethical/thesaurus/synonyms
ChicagoSmart Define. 2015. "unethical thesaurus" https://smartdefine.org/unethical/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unethical thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unethical/thesaurus/synonyms>.
MLASmart Define. "unethical thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/unethical/thesaurus/synonyms>