Undefined vs Ambiguous - What's the difference?

As adjectives the difference between undefined and ambiguous

is that undefined is lacking a definition or value while ambiguous is open to multiple interpretations.

(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

(en adjective)

Open to multiple interpretations.

The politician was criticized for his ambiguous statements and lack of precision.

Vague and unclear.

He gave an ambiguous answer.

(obsolete, of persons) Hesitant; uncertain; not taking sides.

* 1662 (Thomas Salusbury)

And forasmuch as in this same question I am ambiguous , and Simplicius is resolute....

* equivocal

* unambiguous * precise

* *