Probable vs Undefined - What's the difference?

As adjectives the difference between probable and undefined

is that probable is likely or most likely to be true while undefined is lacking a definition or value.

(en adjective)

Likely or most likely to be true.

It's probable that it will rain tomorrow.

The probable source of the failure was the mass of feathers in the intake manifold.

Likely to happen.

With all the support we have, success is looking probable .

Supporting, or giving ground for, belief, but not demonstrating.

probable''' evidence; '''probable presumption

(Blackstone)

(obsolete) Capable of being proved.

* improbable

* * ----

(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