Standard Lemma guide

immutable

adj · noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • CMU ARPABET: IH2 M Y UW1 T AH0 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Unable to be changed without exception.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • The government has enacted an immutable law.

Meaning relationships

Synonyms: unchangeable

Antonyms: none provided

2

adj

Meaning 2

Not able to be altered in the memory after its value is set initially.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, programming, sciences

Examples

  • Constants are immutable.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Something that cannot be changed.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective

Meaning 4

not subject or susceptible to change or variation in form or quality or nature

Definition source: Princeton WordNet 3.0

Examples

  • the view of that time was that all species were immutable, created by God

Meaning relationships

Synonyms: changeless

Antonyms: mutable

History

Etymology

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

Across languages

Translations

32 source translations are retained for this English entry.

  • Bulgarian: неизменен (neizmenen) — unable to be changed without exception
  • Bulgarian: неотменим (neotmenim) — unable to be changed without exception
  • Catalan: immutable — unable to be changed without exception
  • Czech: nezměnitelný — unable to be changed without exception
  • Dutch: onveranderlijk — unable to be changed without exception
  • Finnish: muuttumaton — unable to be changed without exception
  • French: immuable — unable to be changed without exception
  • French: immutable — unable to be changed without exception
  • Galician: inmutábel — unable to be changed without exception
  • Galician: inmutable — unable to be changed without exception
  • Georgian: უცვლელი (ucvleli) — unable to be changed without exception
  • Georgian: დაურღვეველი (daurɣveveli) — unable to be changed without exception
  • Georgian: გარდაუვალი (gardauvali) — unable to be changed without exception
  • German: unveränderbar — unable to be changed without exception
  • German: unveränderlich — unable to be changed without exception
  • Ancient Greek: ἀμετάθετος (ametáthetos) — unable to be changed without exception
  • Italian: immutabile — unable to be changed without exception
  • Japanese: 不変の (fuhen no) — unable to be changed without exception
  • Middle English: immutable — unable to be changed without exception
  • Persian: دگرشناپذیر — unable to be changed without exception
  • Plautdietsch: onve'endalich — unable to be changed without exception
  • Polish: niezmienny — unable to be changed without exception
  • Portuguese: imutável — unable to be changed without exception
  • Romanian: imuabil — unable to be changed without exception
  • Romanian: neschimbător — unable to be changed without exception
  • Russian: неизме́нный (neizménnyj) — unable to be changed without exception
  • Russian: непрело́жный (neprelóžnyj) — unable to be changed without exception
  • Russian: постоя́нный (postojánnyj) — unable to be changed without exception
  • Spanish: inmutable — unable to be changed without exception
  • Swedish: oföränderlig — unable to be changed without exception
  • Turkish: değişmez — unable to be changed without exception
  • Turkish: sabit — unable to be changed without exception