Synonyms of the word 
INCOMMUTABLE → INCONVERTIBLE - UNALTERABLE - UNEXCHANGEABLE - UNTRANSMUTABLE
incommutable
- adj. Not commutable.
inconvertible
- adj. Not convertible.
unalterable
- adj. incapable of changing or being altered.
- adj. irrevocable or irreversible.
unexchangeable
- adj. Not exchangeable.
untransmutable
- adj. not transmutable.
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