(open to or abounding in fresh air; "airy rooms")
(not practical or realizable; speculative; "airy theories about socioeconomic improvement"; "visionary schemes for getting rich")
(having little or no perceptible weight; so light as to resemble air; "airy gauze curtains")
(characterized 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")