Standard Lemma guide

unalterable

adj · 5 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AH0 N AO1 L T ER0 AH0 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Incapable of being altered, or of changing.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Irreversible, irrevocable.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective

Meaning 3

not capable of being changed or altered

Definition source: Princeton WordNet 3.0

Examples

  • unalterable resolve
  • an unalterable ground rule

Meaning relationships

Synonyms: inalterable

Antonyms: alterable

4

adjective satellite

Meaning 4

remaining the same for indefinitely long times

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: changeless

Antonyms: none provided

5

adjective satellite

Meaning 5

of a sentence; that cannot be changed

Definition source: Princeton WordNet 3.0

Examples

  • an unalterable death sentence

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree English un- English alter Proto-Indo-European *-tḗr Proto-Indo-European *-dhlom Proto-Indo-European *-dhlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English alterable English unalterable From un- + alterable.

Across languages

Translations

15 source translations are retained for this English entry.

  • Bulgarian: неизменен (neizmenen) — incapable of being changed
  • Bulgarian: непроменим (nepromenim) — incapable of being changed
  • Catalan: inalterable — incapable of being changed
  • French: inaltérable — incapable of being changed
  • Georgian: შეუცვლელი (šeucvleli) — incapable of being changed
  • Georgian: უცვლელი (ucvleli) — incapable of being changed
  • Georgian: არაცვლადი (aracvladi) — incapable of being changed
  • Georgian: შეუცვლადი (šeucvladi) — incapable of being changed
  • Georgian: უცვლადი (ucvladi) — incapable of being changed
  • German: unumstößlich — incapable of being changed
  • Greek: αμετάβλητος (ametávlitos) — incapable of being changed
  • Ancient Greek: ἀμετάθετος (ametáthetos) — incapable of being changed
  • Italian: inalterabile — incapable of being changed
  • Portuguese: inalterável — incapable of being changed
  • Spanish: inalterable — incapable of being changed