Word Study
ferocity
CIDE DICTIONARY
ferocity, n. [L. ferocitas, fr. ferox, -ocis, fierce, kin to ferus wild: cf. F. ferocité. See Fierce.].
Savage wildness or fierceness; fury; cruelty; as, ferocity of countenance. [1913 Webster]
"The pride and ferocity of a Highland chief." [1913 Webster]
OXFORD DICTIONARY
ferocity, n. (pl. -ies) a ferocious nature or act.
Etymology
F f{eacute}rocit{eacute} or L ferocitas (as FEROCIOUS)
THESAURUS
ferocity
aggression, aggressiveness, animality, antagonism, atrociousness, barbarity, barbarousness, beastliness, bellicism, bellicosity, belligerence, belligerency, bestiality, bloodiness, bloodlust, bloodthirst, bloodthirstiness, bloody-mindedness, brutality, brutalness, brutishness, cannibalism, chauvinism, combativeness, contentiousness, cruelness, cruelty, ferociousness, fiendishness, fierceness, fight, hostility, inhumaneness, inhumanity, jingoism, martialism, militancy, militarism, pugnaciousness, pugnacity, quarrelsomeness, ruthlessness, saber rattling, sadism, sadistic cruelty, sanguineousness, savagery, truculence, unfriendliness, unpeacefulness, vandalism, viciousness, violence, wanton cruelty, warmongering, warpathROGET THESAURUS
ferocity
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 "ferocity" in Webster Dictionary Online