[adjective] not subject or susceptible to change or variation in form or quality or nature; "the view of that time was that all species were immutable, created by God" Synonyms:immutable
[adjective] persistent in occurrence and unvarying in nature; "maintained a constant temperature"; "a constant beat"; "principles of unvarying validity"; "a steady breeze" Synonyms:constant, invariant, steady, unvarying
[adjective] remaining the same for indefinitely long times Synonyms:unalterable
