commonness vs vulgarism

commonness and vulgarism both are nouns.

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

As nouns, commonness and vulgarism are synonyms defined as:

Other synonyms of commonness include coarseness, grossness, raunch, vulgarity.

commonness (noun)	vulgarism (noun)
ordinariness as a consequence of being frequent and commonplace	the quality of lacking taste and refinement
sharing of common attributes	an offensive or indecent word or phrase
the quality of lacking taste and refinement
the state of being that is commonly observed