vernacular vs grotty

vernacular is a noun but grotty is not a noun.

Word	Noun	Adjective	Verb	Adverb
vernacular	Yes	Yes	No	No
grotty	No	Yes	No	No

vernacular (noun)	grotty (noun)
the everyday speech of the people (as distinguished from literary language)
a characteristic language of a particular group (as among thieves)

vernacular (adjective)	grotty (adjective)
being or characteristic of or appropriate to everyday language	very unpleasant or offensive