darned vs filth

darned is not a noun while filth is a noun.

Word	Noun	Adjective	Verb	Adverb
darned	No	Yes	No	No
filth	Yes	No	No	No

darned (noun)	filth (noun)
	an offensive or indecent word or phrase
	a state characterized by foul or disgusting dirt and refuse
	anything regarded as making something unclean
	any substance considered disgustingly foul or unpleasant

darned (adjective)	filth (adjective)
expletives used informally as intensifiers