Word Study
ferocious
OXFORD DICTIONARY
ferocious, adj. fierce, savage; wildly cruel.
Derivative
ferociously adv. ferociousness n.
Etymology
L ferox -ocis
THESAURUS
ferocious
Draconian, Tartarean, abandoned, aggressive, amok, animal, antagonistic, anthropophagous, atrocious, barbaric, barbarous, battling, beastly, bellicose, belligerent, bellowing, berserk, bestial, bloodthirsty, bloody, bloody-minded, brutal, brutalized, brute, brutish, cannibalistic, carried away, chauvinist, chauvinistic, combative, contentious, cruel, cruel-hearted, delirious, demoniac, demoniacal, destructive, devilish, diabolic, diabolical, distracted, ecstatic, enemy, enraptured, fell, feral, ferine, fiendish, fiendlike, fierce, fighting, frantic, frenzied, full of fight, fulminating, furious, grim, haggard, hawkish, hellish, hog-wild, hostile, howling, hysterical, implacable, in a transport, in hysterics, infernal, inhuman, inhumane, inimical, intoxicated, jingo, jingoish, jingoist, jingoistic, kill-crazy, mad, madding, malign, malignant, maniac, martial, merciless, militant, militaristic, military, monstrous, murderous, noncivilized, offensive, orgasmic, orgiastic, pitiless, possessed, predatory, pugnacious, quarrelsome, rabid, raging, ramping, ranting, rapacious, ravening, ravenous, raving, ravished, relentless, roaring, running mad, ruthless, saber-rattling, sadistic, sanguinary, sanguineous, satanic, savage, scrappy, sharkish, slavering, soldierlike, soldierly, storming, subhuman, tameless, transported, trigger-happy, truculent, unchristian, uncivilized, uncontrollable, unfriendly, ungentle, unhuman, unpacific, unpeaceable, unpeaceful, untamed, vicious, violent, voracious, warlike, warmongering, warring, wild, wild-eyed, wild-looking, wolfishROGET THESAURUS
ferocious
Violence
N violence, inclemency, vehemence, might, impetuosity, boisterousness, effervescence, ebullition, turbulence, bluster, uproar, callithump, riot, row, rumpus, le diable a quatre, devil to pay, all the fat in the fire, severity, ferocity, rage, fury, exacerbation, exasperation, malignity, fit, paroxysm, orgasm, climax, aphrodisia, force, brute force, outrage, coup de main, strain, shock, shog, spasm, convulsion, throe, hysterics, passion, outbreak, outburst, debacle, burst, bounce, dissilience, discharge, volley, explosion, blow up, blast, detonation, rush, eruption, displosion, torrent, turmoil, ferment, storm, tempest, rough weather, squall, earthquake, volcano, thunderstorm, berserk, berserker, fury, dragon, demon, tiger, beldame, Tisiphone, Megaera, Alecto, madcap, wild beast, fire eater, violent, vehement, warm, acute, sharp, rough, rude, ungentle, bluff, boisterous, wild, brusque, abrupt, waspish, impetuous, rampant, turbulent, disorderly, blustering, raging, troublous, riotous, tumultuary, tumultuous, obstreperous, uproarious, extravagant, unmitigated, ravening, inextinguishable, tameless, frenzied, desperate, infuriate, furious, outrageous, frantic, hysteric, in hysterics, fiery, flaming, scorching, hot, red-hot, ebullient, savage, fierce, ferocious, fierce as a tiger, excited, unquelled, unquenched, unextinguished, unrepressed, unbridled, unruly, headstrong, ungovernable, unappeasable, immitigable, unmitigable, uncontrollable, incontrollable, insuppressible, irrepressible, orgastic, orgasmatic, orgasmic, spasmodic, convulsive, explosive, detonating, volcanic, meteoric, stormy, violently, amain, by storm, by force, by main force, with might and main, tooth and nail, vi et armis, at the point of the sword, at the point of the bayonet, at one fell swoop, with a high hand, through thick and thin, in desperation, with a vengeance, a outrance, a toute outrance, headlong, head foremost, furor arma ministrat, blown with restless violence round about the pende.Malevolence
N malevolence, bad intent, bad intention, unkindness, diskindness, ill nature, ill will, ill blood, bad blood, enmity, hate, malignity, malice, malice prepense, maliciousness, spite, despite, resentment, uncharitableness, incompassionateness, gall, venom, rancor, rankling, virulence, mordacity, acerbity churlishness, hardness of heart, heart of stone, obduracy, cruelty, cruelness, brutality, savagery, ferity, ferocity, barbarity, inhumanity, immanity, truculence, ruffianism, evil eye, cloven foot, torture, vivisection, ill turn, bad turn, affront, outrage, atrocity, ill usage, intolerance, persecution, tender mercies, unkindest cut of all, malevolent, unbenevolent, unbenign, ill-disposed, ill-intentioned, ill-natured, ill-conditioned, ill-contrived, evil-minded, evil- disposed, black-browed, malicious, malign, malignant, rancorous, despiteful, spiteful, mordacious, caustic, bitter, envenomed, acrimonious, virulent, unamiable, uncharitable, maleficent, venomous, grinding, galling, harsh, disobliging, unkind, unfriendly, ungracious, inofficious, invidious, uncandid, churlish, surly, sullen, cold, cold-blooded, cold-hearted, black-hearted, hard-hearted, flint-hearted, marble-hearted, stony-hearted, hard of heart, unnatural, ruthless, relentless, cruel, brutal, brutish, savage, savage as a bear, savage as a tiger, ferine, ferocious, inhuman, barbarous, barbaric, semibarbaric, fell, untamed, tameless, truculent, incendiary, bloodthirsty, atrocious, bloodyminded, fiendish, fiendlike, demoniacal, diabolic, diabolical, devilish, infernal, hellish, Satanic, Tartaran, malevolently, with bad intent, cruel as death, hard unkindness' alter'd eye, homo homini lupus, mala mens, malus animus, rich gifts wax poor when givers prove unkind, sharp-tooth'd unkindness.For further exploring for "ferocious" in Webster Dictionary Online