1
cloven-footed(adjective, wicked, execrable, demonic, diabolical)
1
contaminated(adjective, offensive, unpleasant, violent, wild)
1
contemptuous
1
creepy(adjective, dislike, disgusting, hate, yuck)
1
cruel(adjective, wicked)
1
crummy
1
dastardly
1
debauched(adjective, evil, corrupt, wicked, dishonest)
1
demoniac(adjective, evil, vile, wicked, execrable)
1
demonic(adjective, evil, terrible, vile, wicked)
1
despisable(adjective, good)
1
destructive(adjective, evil)
1
dire
1
distressing(adjective, wicked)
1
double-dealing(adjective, corrupt, dishonest, immoral, rotten)
1
duplicitous
1
enormous
1
evil-minded
1
evildoer
1
exploiting(adjective, dishonest, immoral, rotten, untrustworthy)
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APASmart Define. (2015). nefarious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/nefarious/thesaurus/synonyms
ChicagoSmart Define. 2015. "nefarious thesaurus" https://smartdefine.org/nefarious/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, nefarious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/nefarious/thesaurus/synonyms>.
MLASmart Define. "nefarious thesaurus" 8 October 2015. Web. 22 September 2026. <https://smartdefine.org/nefarious/thesaurus/synonyms>