immutable Synonyms - page 2

nonreturnable nonreversible nonspatial unchanged untransmutable abiding everlasting firm fixed immortal immovable imperforate imperishable inalterable incommutable incorruptible indefeasible even eternal established ageless cast iron consistent constant continuing deathless diuturnal durable durative elemental enduring indestructible indissoluble irreversible irrevocable irrevokable lasting longeval longevous long-lived nonelastic perdurable perennial permanent irretrievable irresilient irrepealable inductile ineradicable inextensible