IMMORTAL'ITY, n. The quality of never ceasing to live or exist; exemption from death and annihilation; life destined to endure without end; as the immortality of the human soul. --Jesus Christ, who hath abolished death, and hath brought life and immortality to light through the gospel. 2 Tim.1.1. Exemption from oblivion.2. Perpetuity; existence not limited; as the immortality of a corporation.