29
hellish(adjective, kind, evil, harsh, unpleasant)
27
diabolic(adjective, kind, evil, vile, wicked)
26
fiendish(adjective, kind, evil, vile, wicked)
25
satanic(adjective, kind, evil, vile, wicked)
20
demonic(adjective, evil, terrible, vile, wicked)
19
devilish(adjective, kind, evil, harsh, violent)
19
wicked(adjective, evil, terrible, vile, mysterious)
17
evil(adjective, cruel, vile, wicked, mysterious)
16
diabolical(adjective, kind, evil, harsh, violent)
12
damned(adjective, like, informal, inexpedience)
12
demoniac(adjective, harsh, violent, cruel, vicious)
11
Mephistophelian(adjective, evil, vile, wicked, fiendish)
11
blasted(adjective, complete, like, flat, total)
11
iniquitous(adjective, evil, wicked, immoral, despicable)
10
blamed(adjective, like, informal, damned, underworld)
10
malevolent(adjective, harsh, violent, cruel, vicious)
10
malicious(adjective, evil, harsh, violent, cruel)
9
atrocious(adjective, evil, harsh, violent, cruel)
9
cursed(adjective, like, wicked, hateful, lousy)
9
damnable(adjective, evil, wicked, mysterious, lousy)
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APASmart Define. (2015). infernal thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/infernal/thesaurus/synonyms
ChicagoSmart Define. 2015. "infernal thesaurus" https://smartdefine.org/infernal/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, infernal thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/infernal/thesaurus/synonyms>.
MLASmart Define. "infernal thesaurus" 17 July 2015. Web. 21 September 2026. <https://smartdefine.org/infernal/thesaurus/synonyms>