As adjectives the difference between unalterable and unaltered
is that unalterable is incapable of changing or being altered while unaltered is remaining in its initial state.
unalterable
English
Adjective
(
en adjective)
incapable of changing or being altered
irrevocable or irreversible
Synonyms
* inalterable
Antonyms
* alterable
Derived terms
* unalterably
Anagrams
*
unaltered
English
Adjective
(-)
Remaining in its initial state
Synonyms
* unchanged
Antonyms
* altered
* changed
Anagrams
*