1. (adj) aeriform, aerial, airy, aery, ethereal
characterized by lightness and insubstantiality; as impalpable or intangible as air
Synonyms: celestial, supernal, aery, aeriform, windy, ethereal, airy, airlike, impractical, aerial, visionary, gossamer, aired
Antonyms: substantial, material, earthly, real, rugged
2. (adj) ethereal
of or containing or dissolved in ether
Synonyms: supernal, celestial, aerial, gossamer, aery, aeriform, airy
Antonyms: real, material, substantial, rugged, earthly
3. (adj) celestial, ethereal, supernal
of heaven or the spirit
Synonyms: heavenly, supernal, aery, aeriform, ethereal, airy, celestial, aerial, gossamer
Antonyms: substantial, real, rugged, material, earthly
4. (adj) ethereal, gossamer
characterized by unusual lightness and delicacy
Synonyms: vapourous, celestial, aery, cobwebby, diaphanous, sheer, see-through, aerial, vaporous, gossamer, airy, filmy, gauzy, gauze-like, aeriform, supernal, transparent, ethereal
Antonyms: substantial, material, real, rugged, earthly
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Synonyms and Antonyms of ethereal 
