15
diabolic(adjective, evil, vile, wicked, fiendish)
12
devilish(adjective, wicked)
10
infernal(adjective, evil, vile, wicked, fiendish)
10
satanic(adjective, evil, vile, wicked, fiendish)
9
fiendish(adjective, evil, vile, wicked, demonic)
8
demonic(adjective, evil, vile, wicked, execrable)
7
demoniac(adjective, evil, vile, wicked, execrable)
7
diabolical(adjective, wicked, demonic)
7
evil
7
hellish
6
wicked
4
bad(adjective, wicked, demonic, diabolical)
4
iniquitous(adjective, wicked, execrable, demonic, diabolical)
3
cacodemonic
3
ghoulish
3
malevolent
3
mephistophelean
3
sinister
3
villainous(adjective, evil, vile, wicked, execrable)
2
damnable(adjective, evil, vile, wicked, execrable)
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APASmart Define. (2013). mephistophelian thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mephistophelian/thesaurus/synonyms
ChicagoSmart Define. 2013. "mephistophelian thesaurus" https://smartdefine.org/mephistophelian/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, mephistophelian thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mephistophelian/thesaurus/synonyms>.
MLASmart Define. "mephistophelian thesaurus" 27 June 2013. Web. 22 September 2026. <https://smartdefine.org/mephistophelian/thesaurus/synonyms>