[fu.ri.ous] adj [ME, fr. MF furieus, fr. L furiosus, fr. furia madness, fury] (14c) 1 a (1): exhibiting or goaded by anger (2): indicative of or proceeding from anger b: giving a stormy or turbulent appearance "~ bursts of flame" c: marked by noise, excitement, activity, or rapidity
2: intense 1a "the ~ growth of tropical vegetation" -- fu.ri.ous.ly adv