adj. 1. Extremely light or delicate: "An ant lion ... is lovely, long-bodied like a damselfly, with a pair of ethereal wings" (Jennifer Ackerman). 2. a. Of the celestial spheres; heavenly. b. Spiritual or otherworldly. 3. Chemistry Of or relating to ether. [From Latin aetherius, from Greek aitherios, from aithēr, upper air.] e·the′re·ali·ty (-ălĭ-tē), e·there·al·ness n. e·there·al·ly adv. |
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