Vernacular vs Undefined - What's the difference?

As adjectives the difference between vernacular and undefined

is that vernacular is of or pertaining to everyday language while undefined is lacking a definition or value.

is the language of a people or a national language.

(wikipedia vernacular)

(en noun)

The language of a people or a national language.

''A vernacular of the United States is English.

Everyday speech or dialect, including colloquialisms, as opposed to literary, liturgical, or scientific language.

Street vernacular can be quite different from what is heard elsewhere.

Language unique to a particular group of people; jargon, argot.

For those of a certain age, hiphop vernacular might just as well be a foreign language.

(Roman Catholicism) The indigenous language of a people, into which the words of the Mass are translated.

Vatican II allowed the celebration of the mass in the vernacular .

* (language unique to a group) argot, jargon, slang

* (national language) lingua franca

(en adjective)

Of or pertaining to everyday language.

Belonging to the country of one's birth; one's own by birth or nature; native; indigenous.

a vernacular disease

(architecture) of or related to local building materials and styles; not imported

(art) is connected to a collective memory; not imported

* (of everyday language) common, everyday, indigenous, ordinary, vulgar * (architecture) folk

(wikipedia undefined) (-)

Lacking a definition or value.

(mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.

The result of division by zero is undefined .

* defined