Open English Wordnet
Nouns
Adjectives
(s)aeriform, aerial, airy, aery, etherealcharacterized by lightness and insubstantiality; as impalpable or intangible as air“figures light and aeriform come unlooked for and melt away” (Thomas Carlyle),
“aerial fancies”,
“an airy apparition”,
“physical rather than ethereal forms”