Equine vs Undefined - What's the difference?

As adjectives the difference between equine and undefined

is that equine is while undefined is lacking a definition or value.

(-)

Of or relating to a horse or horses

Of or relating to any member or members of the genus Equus .

* horsey or horsy

(en noun)

Any horse or horse-like animal, especially one of the genus Equus .

(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