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Lifelong vs Undefined - What's the difference?

lifelong | undefined |

As adjectives the difference between lifelong and undefined

is that lifelong is extending for the entire duration of life while undefined is lacking a definition or value.

lifelong

English

Alternative forms

* life-long, life long

Adjective

(-)
  • Extending for the entire duration of life.
    • They were lifelong friends; they met in elementary school and ended their lives in the same rest home.

    undefined

    English

    Adjective

    (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 .

    Antonyms

    * defined