Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; as, ethereal space; ethereal regions.
- Characterized by lightness and insubstantiality; intangible.
- Highly refined; delicate. See Synonyms at airy.
- Of the celestial spheres; heavenly.
- Not of this world; spiritual.
- Chemistry Of or relating to ether.