obscenity vs posterior

obscenity and posterior both are nouns.

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

obscenity (noun)	posterior (noun)
an obscene act	the fleshy part of the human body that you sit on
the trait of behaving in an obscene manner	a tooth situated at the back of the mouth
an offensive or indecent word or phrase

obscenity (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