possible profanity
5
impious(adjective, bad, wrong, evil, nasty)
5
mad(adjective, evil, cruel, wicked, controlled)
5
malignant(adjective, animal, mean, cruel, vicious)
5
misaffectionate(adjective, person, unwarmhearted)
5
misanthropic(adjective, person, unwarmhearted)
5
mummified(adjective, person, unwarmhearted)
5
naughty(adjective, bad, wicked, misbehaved)
5
ominous(adjective, person, unwarmhearted)
5
pitiless(adjective, animal, mean, cruel, vicious)
5
standoffish(adjective, person, unwarmhearted)
5
stern(adjective, person, unwarmhearted)
5
terrible(adjective, wicked)
5
uncordial(adjective, person, unwarmhearted)
5
unfriendly(adjective, person, unwarmhearted)
4
amoral(adjective, wicked)
4
animal(noun, adjective, mean, cruel, vicious)
4
base(adjective, wicked)
4
brute
4
cacodemonic
4
feral
10 years ago|18k views|share |citing 
APASmart Define. (2016). fiendish thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fiendish/thesaurus/synonyms
ChicagoSmart Define. 2016. "fiendish thesaurus" https://smartdefine.org/fiendish/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fiendish thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fiendish/thesaurus/synonyms>.
MLASmart Define. "fiendish thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/fiendish/thesaurus/synonyms>