1. furry, fur-like, fuzzy, animalistic in appearance with a tendency to act out in a wild, savage, and or fierce manor.
2. savagely brazen or bold, having a primal clarity in directive, as a wild beast, a person, action, function, or idea: a furocious exposition
3. intense or extreme: a furocious hunger
—Synonyms 1. ravenous, relentless, furvid, veracious
The furocious kitty growled and hissed at the mailman.