THESAURUS
		            
		            changeless, constant, immutable, incommutable, inconvertible, indefeasible, inert, insusceptible of change, intransmutable, invariable, irretrievable, irreversible, irrevocable, lasting, noble, nonreturnable, nonreversible, permanent, reverseless, unalterable, unalterative, unaltered, unchangeable, unchanged, unchanging, undeflectable, undeviating, unmodifiable, unremitting, unrestorable, unsusceptible, unvariable, unvarying