1
disgraceful
1
disingenuous
1
double-crossing(adjective, wrong, corrupt, dishonest, immoral)
1
double-dealing(adjective, corrupt, dishonest, immoral, rotten)
1
dreadful
1
duplicitous(dishonest, cunning, deceitful, fickle, untrustworthy)
1
errant
1
evasive
1
exploiting(adjective, dishonest, immoral, rotten, untrustworthy)
1
extortionate(adjective, dishonest, immoral, rotten, untrustworthy)
1
fast and loose(expression, adjective, idiom, dishonest, immoral)
1
fiendish
1
fixed(adjective, dishonest, immoral, rotten, untrustworthy)
1
flagitious
1
flimflam(adjective, wrong, dishonest, immoral, unprincipled)
1
fly-by-night(adjective, wrong, dishonest, immoral, unprincipled)
1
furtive(dishonest, cunning, deceitful, sneaky, underhanded)
1
gone to the dogs(expression, adjective, idiom, dishonest, immoral)
1
gross
1
ill-got
11 years ago|14k views|share |citing 
APASmart Define. (2015). unethical thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unethical/thesaurus/synonyms
ChicagoSmart Define. 2015. "unethical thesaurus" https://smartdefine.org/unethical/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unethical thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unethical/thesaurus/synonyms>.
MLASmart Define. "unethical thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/unethical/thesaurus/synonyms>