filth vs nastiness

filth and nastiness both are nouns.

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

As nouns, filth and nastiness are synonyms defined as:

filth and nastiness: a state characterized by foul or disgusting dirt and refuse

Other synonyms of filth include filthiness, foulness.

filth (noun)	nastiness (noun)
an offensive or indecent word or phrase	the quality of being highly unpleasant
a state characterized by foul or disgusting dirt and refuse	malevolence by virtue of being malicious or spiteful or nasty
anything regarded as making something unclean	a state characterized by foul or disgusting dirt and refuse
any substance considered disgustingly foul or unpleasant