furious (adj.)

late 14c., "impetuous, unrestrained," from Old French furios, furieus "furious, enraged, livid" (14c., Modern French furieux), from Latin furiosus "full of rage, mad," from furia "rage, passion, fury" (see fury). Furioso, from the Italian form of the word, was used in English 17c.-18c. for "an enraged person," probably from Ariosto's "Orlando Furioso."

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Definitions of furious from WordNet

furious (adj.)
marked by extreme and violent energy;
a furious battle
Synonyms: ferocious / fierce / savage
furious (adj.)
marked by extreme anger;
a furious scowl
furious about the accident
Synonyms: angered / enraged / infuriated / maddened
furious (adj.)
(of the elements) as if showing violent anger;
furious winds
Synonyms: angry / raging / tempestuous / wild