Elate vs Undefined - What's the difference?

As adjectives the difference between elate and undefined

is that elate is elated; exultant while undefined is lacking a definition or value.

is to make joyful or proud.

(elat)

To make joyful or proud.

To lift up; raise; elevate.

(head)

elated; exultant

* Alexander Pope

O, thoughtless mortals! ever blind to fate, / Too soon dejected, and dejected, and too soon elate .

* Mrs. H. H. Jackson

Our nineteenth century is wonderfully set up in its own esteem, wonderfully elate at its progress.

(obsolete) Lifted up; raised; elevated.

* Fenton

with upper lip elate

* Sir W. Jones

And sovereign law, that State's collected will, / O'er thrones and globes, elate , / Sits empress, crowning good, repressing ill.

* (English Citations of "elate")

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(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