obscenity vs filth

obscenity and filth both are nouns.

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

As nouns, obscenity and filth are synonyms defined as:

Other synonyms of obscenity include dirty word, smut, vulgarism.

obscenity (noun)	filth (noun)
an obscene act	an offensive or indecent word or phrase
the trait of behaving in an obscene manner	a state characterized by foul or disgusting dirt and refuse
an offensive or indecent word or phrase	anything regarded as making something unclean
	any substance considered disgustingly foul or unpleasant