slovenly person vs vulgarian

slovenly person and vulgarian both are nouns.

Word	Noun	Adjective	Verb	Adverb
slovenly person	Yes	No	No	No
vulgarian	Yes	No	No	No

As nouns, vulgarian is a hypernym of slovenly person; that is, vulgarian is a word with a broader meaning than slovenly person:

slovenly person: a coarse obnoxious person
vulgarian: a vulgar person (especially someone who makes a vulgar display of wealth)

slovenly person (noun)	vulgarian (noun)
a coarse obnoxious person	a vulgar person (especially someone who makes a vulgar display of wealth)