Im-mū'ta-ble, a.

a. [Lat. immutabilis; prefix im, for in, not, and mutabilis, mutable; Fr. immutable, It. immutabile, Sp. inmudable.] Not mutable; incapable of mutation; not susceptible of change; unchangeable; invariable; unalterable.

That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation. Heb. vi. 18.