Synonyms of immutable in English:

immutable


See definition of immutable

adjective

1‘a precise and immutable set of rules’

SYNONYMS
unchangeable, fixed, set, rigid, inflexible, unyielding, unbending, permanent, entrenched, established, well established, unshakeable, irremovable, indelible, ineradicable
unchanging, unchanged, changeless, unvarying, unvaried, undeviating, static, constant, lasting, abiding, enduring, persistent, perpetual
ANTONYMS

variable