that cannot be cured

unfixable, unchangeable

not able to be treated by an operation; (of a system, innovation) not able to be used

unfixable, unchangeable

that cannot be recovered

unfixable, unchangeable

(of a loss, damage etc) that cannot be put right or restored

unable to be fixed

too good, rare, special etc to be able to be replaced if lost, broken etc

unable to be fixed

that cannot be retrieved or remedied

unable to be fixed

that cannot be reversed or revoked

irrevocable

final and unalterable

fixed, unchangeable