Synonyms for ferocious
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fierce, savage, wild, feral, barbarous, untamed, fell, brutal, cruel, sanguinary, predatory, ravenous, vehement, violent, unrestrained, bloodthirsty, murderous, brutish, pitiless, merciless, unmerciful, fearsome, frightful.
Antonyms gentle*, mild, tame.
See ferocious in Webster's New World Roget's A-Z Thesaurus II
adjective
Showing or suggesting a disposition to be violently destructive without scruple or restraint:
barbarous, bestial, cruel, fell2, feral, fierce, inhuman, savage, truculent, vicious, wolfish. See kindSo intense as to cause extreme suffering:
cruel, fierce, savage, vicious. See help, kind
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