Southern vs Undefined - What's the difference?

As adjectives the difference between southern and undefined

is that southern is (not in us) from or pertaining to the southern part of any region while undefined is lacking a definition or value.

(en adjective)

Of, facing, situated in, or related to the south.

Of or pertaining to a southern region, especially Southern Europe or the southern United States.

* {{quote-magazine, date=2013-06-08, volume=407, issue=8839, page=52, magazine=(The Economist)

, title= The new masters and commanders , passage=From the ground, Colombo’s port does not look like much.

Of a wind: blowing from the south; southerly.

* austral * meridional

* northern * boreal * septentrional

(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