changeless bedeutet auf synonym

constant+adjective

immutable+adjective

invariable+adjective
similar term

invariant+adjective

mutable+adjective
antonym

unalterable+adjective

unchangeable+adjective
similar term

unvarying+adjective

changeableness+noun
antonym

durability+noun
generic term

enduringness+noun
generic term

lastingness+noun
generic term

quality+noun
generic term

strength+noun
generic term

unchangeability+noun

unchangeableness+noun

unchangingness+noun