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Immutable vs Undefined - What's the difference?

immutable | undefined |

As adjectives the difference between immutable and undefined

is that immutable is unable to be changed without exception while undefined is lacking a definition or value.

As a noun immutable

is something that cannot be changed.

immutable

English

Adjective

(-)
  • Unable to be changed without exception.
    • The government has enacted an immutable law.
  • (programming, of a variable) Not able to be altered in the memory after its value is set initially, such as a constant.

    • Antonyms

    * mutable * nonimmutable

    Derived terms

    * strongly immutable * weakly immutable

    Noun

    (en noun)
  • Something that cannot be changed.

    • Anagrams

    * ----

    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