Of or pertaining to the sky or visible heaven: as, the celestial globe; “the twelve celestial signs,”Heavenly; belonging or relating to, or characteristic of, heaven; dwelling in heaven; hence, of superior excellence, delight, purity, etc.: as, a celestial being; celestial felicity.n. An inhabitant of heaven.n. [capitalized] A popular name for a native of China, the “Celestial Empire.”