12
harsh(adjective, mean, hard, severe, evil)
12
atrocious(adjective, evil, nasty, harsh, rude)
12
sanguinary(adjective, violent, barbaric, aper, demoniac)
11
bestial(adjective, animal, mean, kind, evil)
11
grim(adjective, animal, appearance, mean, harsh)
10
untamed(adjective, strong, severe, intense, violent)
9
hellish(adjective, evil, nasty, harsh, awful)
9
nasty(adjective, awful, violent, terrible, wild)
9
ravenous(adjective, violent, greedy, hungry, rapacious)
8
beastly(adjective, awful, terrible, horrible, afraid)
8
deadly(adjective, awful, terrible, horrible, afraid)
8
homicidal
8
monstrous(adjective, evil, nasty, harsh, rude)
8
rapacious(adjective, violent, greedy, hungry, voracious)
8
relentless(adjective, animal, mean, strong, severe)
8
scathing(adjective, awful, terrible, horrible, afraid)
8
vehement(adjective, strong, violent, brutal, menacing)
7
angry(adjective, state, characteristic, strong, severe)
7
appalling(adjective, awful, terrible, horrible, afraid)
7
bloody
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APASmart Define. (2015). ferocious thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/ferocious/thesaurus/synonyms
ChicagoSmart Define. 2015. "ferocious thesaurus" https://smartdefine.org/ferocious/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, ferocious thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/ferocious/thesaurus/synonyms>.
MLASmart Define. "ferocious thesaurus" 3 August 2015. Web. 21 September 2026. <https://smartdefine.org/ferocious/thesaurus/synonyms>