filthy vs filth

filthy is not a noun while filth is a noun.

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

filthy (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

filthy (adjective)	filth (adjective)
disgustingly dirty; filled or smeared with offensive matter
characterized by obscenity
vile; despicable