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Failproof vs Undefined - What's the difference?

failproof | undefined |

As adjectives the difference between failproof and undefined

is that failproof is resistant to failure; that cannot go wrong while undefined is lacking a definition or value.

failproof

English

Adjective

(en adjective)
  • Resistant to failure; that cannot go wrong.

    • Synonyms

    * failureproof

    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