filth vs posterior

filth and posterior both are nouns.

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

filth (noun)	posterior (noun)
an offensive or indecent word or phrase	the fleshy part of the human body that you sit on
a state characterized by foul or disgusting dirt and refuse	a tooth situated at the back of the mouth
anything regarded as making something unclean
any substance considered disgustingly foul or unpleasant

filth (adjective)	posterior (adjective)
	located at or near or behind a part or near the end of a structure
	coming at a subsequent time or stage