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Retroactive vs Undefined - What's the difference?

retroactive | undefined |

As adjectives the difference between retroactive and undefined

is that retroactive is while undefined is lacking a definition or value.

retroactive

English

Adjective

(-)
  • Extending in scope, effect, application or influence to a prior time or to prior conditions

    • Related terms

    * retroaction * retroactively

    See also

    *ex post facto *retrospective

    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