illegitimate vs obscenity

illegitimate and obscenity both are nouns.

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

illegitimate (noun)	obscenity (noun)
the illegitimate offspring of unmarried parents	an obscene act
	the trait of behaving in an obscene manner
	an offensive or indecent word or phrase

illegitimate (adjective)	obscenity (adjective)
of marriages and offspring; not recognized as lawful
contrary to or forbidden by law