Immutable

adj, noun

Definitions

Adjective
  1. 1
    Unable to be changed without exception. not-comparable

    "The government has enacted an immutable law."

  2. 2
    Not able to be altered in the memory after its value is set initially. not-comparable

    "Constants are immutable."

Adjective
  1. 1
    not subject or susceptible to change or variation in form or quality or nature wordnet
  2. 2
    constant and unchanging wordnet
Noun
  1. 1
    Something that cannot be changed.

Etymology

Etymology 1

From Middle English immutable, from Latin immūtābilis (“unchangeable”); im- + mutable.

Etymology 2

From Middle English immutable, from Latin immūtābilis (“unchangeable”); im- + mutable.

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