filth vs filthiness

filth and filthiness both are nouns.

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

As nouns, filth and filthiness are synonyms defined as:

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

Other synonyms of filth include foulness, nastiness.

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