Causal vs Undefined - What's the difference?

As adjectives the difference between causal and undefined

is that causal is of, relating to, or being a cause of something; causing while undefined is lacking a definition or value.

is (grammar) a word (such as because) that expresses a reason or a cause.

(en adjective)

of, relating to, or being a cause of something; causing

There is no causal relationship between eating carrots and seeing in the dark.

(en noun)

(grammar) a word (such as because) that expresses a reason or a cause

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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 .

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