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Retractable vs Undefined - What's the difference?

retractable | undefined |

As adjectives the difference between retractable and undefined

is that retractable is retractable (capable of being retracted) while undefined is lacking a definition or value.

retractable

English

Adjective

(-)
  • Capable of being retracted; retractile.

    • See also

    * pull-down

    Noun

    (en noun)
  • A retractable pen.
  • * 1979 , Douglas Adams, The Hitchhiker's Guide to the Galaxy
    • Somewhere in the cosmos, he said,

    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