fierce
fierce \'fi(*)rs\ aj [ME fiers, fr. OF, fr. L ferus wild, savage; akin to the-r] wild animal 1a: violently hostile or aggressive in temperament 1b: given to fighting or killing : PUGNACIOUS 2a: marked by unrestrained zeal or vehemence 2b: extremely vexatious, disappointing, or intense 3: furiously active or determined 4: wild or menacing in aspect EL mean showing fury or malignity in looks or actions. FIERCE applies to men and animals that inspire terror because of their wild and menacing aspect or fury in attack; FEROCIOUS implies extreme fierceness and unrestrained violence and brutality; BARBAROUS implies a ferocity or mercilessness regarded as unworthy of civilized men; SAVAGE implies the absence of inhibitions restraining civilized men filled with rage, lust, or other violent passion; CRUEL implies indifference to suffering and even positive pleasure in inflicting it - fierce.ly av SYN syn FIERCE, FEROCIOUS, BARBAROUS, SAVAGE, CRU
Webster's English Dictionary