3
unconscionable(adjective, immoral, immoderate)
3
unjust(adjective, bad, immoral)
3
unmoral
3
unrighteous
3
unscrupulous(adjective, immoral)
2
atrocious
2
blameworthy
2
cruel(good, kind, gentle)
2
debased
2
decadent(adjective, corrupt)
2
degraded
2
disgraceful
2
disreputable(adjective, bad, immoral)
2
errant
2
lascivious(adjective, clean, aroused)
2
libertine
2
libidinous(adjective, clean, lustful)
2
mean(good, gentle)
2
nasty(adjective, calm, good, gentle, indecent)
2
nefarious
10 years ago|5.4k views|share |citing 
APASmart Define. (2016). moral thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/moral/thesaurus/antonyms
ChicagoSmart Define. 2016. "moral thesaurus" https://smartdefine.org/moral/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, moral thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/moral/thesaurus/antonyms>.
MLASmart Define. "moral thesaurus" 1 March 2016. Web. 25 September 2026. <https://smartdefine.org/moral/thesaurus/antonyms>