unalterable

== English == === Etymology === From un- +‎ alterable. === Pronunciation === === Adjective === unalterable (comparative more unalterable, superlative most unalterable) Incapable of being altered, or of changing. Irreversible, irrevocable. ==== Synonyms ==== inalterable ==== Antonyms ==== alterable ==== Derived terms ==== unalterably ==== Translations ==== === Anagrams === unalertable, unrelatable