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1. Extremely light or delicate: "An ant lion ... is lovely, long-bodied like a damselfly, with a pair of ethereal wings" (Jennifer Ackerman).
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·al′i·ty (-ăl′ĭ-tē), e·the′re·al·ness n.
e·the′re·al·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Rather than simply reading realist description of a well-dressed, plump man, the passage makes the grotesquely tactile M'sieur Pierre a foil to the protagonist's etherealness and positions consequently pnysicality as one of the novella's interpretative keys.
The sense of transience, of disposability lends to the songs etherealness -- both it and the relationships it documents are only here for a moment.
Jenkinson's opening movement stressed the majesty rather than the feathery etherealness, but throughout the work musicality flowed through and through.