Immutable definition

ĭ-myo͝otə-bəl
Not subject or susceptible to change.
adjective
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Never changing or varying; unchangeable.
adjective
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The definition of immutable is not able to be changed.

An example of immutable is something that has happened and cannot be reversed.

adjective
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Unable to be changed without exception.

The government has enacted an immutable law.

adjective
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(programming, of a variable) Not able to be altered in the memory after its value is set initially, such as a constant.
adjective
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Something that cannot be changed.
noun
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Other Word Forms

Noun

Singular:
immutable
Plural:
immutables

Origin of immutable

  • From French, ultimately from Latin immutabilis (“unchangable”); im- +‎ mutable

    From Wiktionary