ferocious
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/icons/point.icon FIERCE, FEROCIOUS, BARBAROUS, SAVAGE, CRUEL mean showing fury or malignity in looks or actions.
FIERCE applies to humans and animals that inspire terror because of their wild and menacing aspect or fury in attack.
e.g. fierce warriors
FEROCIOUS implies extreme fierceness and unrestrained violence and brutality.
e.g. a ferocious dog
BARBAROUS implies a ferocity or mercilessness regarded as unworthy of civilized people.
e.g. barbarous treatment of prisoners
SAVAGE implies the absence of inhibitions restraining civilized people filled with rage, lust, or other violent passion.
e.g. a savage criminal
CRUEL implies indifference to suffering and even positive pleasure in inflicting it.
e.g. the cruel jokes of schoolboys
adjective
savagely fierce, cruel, or violent:
〈動物･人などが〉獰猛（どうもう）な, 凶暴な
e.g. the wolverine is nature's most ferocious and violent animal.
(of a conflict) characterized by or involving aggression, bitterness, and determination:
〈戦闘･議論･風雨･感情などが〉激烈［猛烈］な, 激しい
e.g. a ferocious argument.
informal extreme and unpleasant:
ものすごい, ひどい
e.g. a ferocious headache.
DERIVATIVES
ferociousness |fəˈrōSHəsnəs| noun
ORIGIN
mid 17th century: from Latin ferox, feroc- ‘fierce’+ -ious.