furious vs tempestuous

furious and tempestuous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
furious	No	Yes	No	No
tempestuous	No	Yes	No	No

As adjectives, furious and tempestuous are synonyms defined as:

Other synonyms of furious include angry, raging, wild.

furious (adjective)	tempestuous (adjective)
marked by extreme anger	(of the elements) as if showing violent anger
(of the elements) as if showing violent anger	characterized by violent emotions or behavior
marked by extreme and violent energy