Definition of ferocious adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈrəʊʃəs//
; NAmE NAmE//ˈroʊʃəs//
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very aggressive or violent; very strong synonym savage a ferocious beast/attack/storm a man driven by ferocious determination ferocious opposition to the plan Word Origin mid 17th cent.: from Latin ferox, feroc- ‘fierce’ + -ious.
See the Oxford Advanced American Dictionary entry: ferocious