illegitimate vs vulgarism

illegitimate and vulgarism both are nouns.

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

illegitimate (noun)	vulgarism (noun)
the illegitimate offspring of unmarried parents	the quality of lacking taste and refinement
	an offensive or indecent word or phrase

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