vulgarism vs obscenity

vulgarism and obscenity both are nouns.

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

As nouns, vulgarism and obscenity are synonyms defined as:

Other synonyms of vulgarism include dirty word, filth, smut.

vulgarism (noun)	obscenity (noun)
the quality of lacking taste and refinement	an obscene act
an offensive or indecent word or phrase	the trait of behaving in an obscene manner
	an offensive or indecent word or phrase