fervent vs ardent

fervent and ardent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fervent	No	Yes	No	No
ardent	No	Yes	No	No

As adjectives, fervent and ardent are synonyms defined as:

Other synonyms of fervent include fervid, fiery, impassioned, perfervid, torrid.

fervent (adjective)	ardent (adjective)
(archaic) extremely hot, burning, or glowing	glowing or shining like fire
characterized by intense emotion	characterized by strong enthusiasm
	characterized by intense emotion