Main Entry: fu·ri·ous

Pronunciation: \ˈfyu̇r-ē-əs\

Function: adjective

Etymology: Middle English, from Middle French & Latin; Middle French furieus, from Latin furiosus, from furia madness, fury

Date: 14th century

1 a (1) : exhibiting or goaded by anger (2) : indicative of or proceeding from anger b : giving a stormy or turbulent appearance <furious bursts of flame> c : marked by noise, excitement, activity, or rapidity
2 : intense 1a <the furious growth of tropical vegetation>

— fu·ri·ous·ly adverb