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ENGLISH · A WORD WITH POSSIBILITIES

unalterable.

Incapable of being altered, or of changing.

11 characters5 syllables approx.English language

Meaning & usage

adj

  1. Incapable of being altered, or of changing.

  2. Irreversible, irrevocable.

Where this word comes from

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

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.