1. (a.) Not mortal; exempt from liability to die; undying; imperishable; lasting forever; having unlimited, or eternal, existence.

2. (a.) Connected with, or pertaining to immortality.

3. (a.) Destined to live in all ages of this world; abiding; exempt from oblivion; imperishable; as, immortal fame.

4. (a.) Great; excessive; grievous.

5. (n.) One who will never cease to be; one exempt from death, decay, or annihilation.