immutable Meaning, Definition & Usage

  1. adjective not subject or susceptible to change or variation in form or quality or nature
    changeless.
    • the view of that time was that all species were immutable, created by God

WordNet

Im*mu"ta*ble adjective
Etymology
L. immutabilis; pref. im- not + mutabilis mutable. See Mutable.
Definitions
  1. Not mutable; not capable or susceptible of change; unchangeable; unalterable.
    That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation. Heb. vi. 18.
    Immutable, immortal, infinite, Eternal King. Milton.
    -- Im*mu"ta*ble*ness, n. -- Im*mu"ta*bly, adv.

Webster 1913