Synonyms|522Antonyms|45|Broader|16Narrower|18Related|202
4
bedlamite(noun, person, crazy, nut, fanatic)
4
booster(noun, supporter, fan, attendant, follower)
4
cacodemon(noun, demon)
4
crackpot(noun, person, crazy, nut, fanatic)
4
deuce(noun, satan)
4
harpy(noun, demon)
4
hellcat
4
scoundrel(noun, brute, monster, demon, beast)
4
troll(noun, person, villain, brute, monster)
3
adversary(noun, evil, awful, brute, monster)
3
believer(noun, supporter, fan, attendant, follower)
3
cannibal(noun, person, bad, evil)
3
connoisseur(noun, fan, enthusiast)
3
daimon
3
degenerate(noun, person, bully, villain, brute)
3
devil incarnate(noun, expression, idiom, evil doer, satan)
3
dybbuk(noun, brute, monster, demon, beast)
3
evil-doer(noun, person, bad, evil)
3
evil genius(expression, idiom, demon)
3
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ChicagoSmart Define. 2015. "fiend thesaurus" https://smartdefine.org/fiend/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, fiend thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fiend/thesaurus/synonyms>.
MLASmart Define. "fiend thesaurus" 24 December 2015. Web. 22 September 2026. <https://smartdefine.org/fiend/thesaurus/synonyms>