Open to or abounding in fresh air (synset 302518975)
"airy rooms"similar: ventilated - exposed to airsynonym: aired
Not practical or realizable;
Speculative (synset 302508026)"airy theories about socioeconomic improvement"; "visionary schemes for getting rich"similar: utopian - characterized by or aspiring to impracticable perfection
Having little or no perceptible weight;
So light as to resemble air (synset 301190456)"airy gauze curtains"similar: light - of comparatively little physical weight or density
Characterized by lightness and insubstantiality;
As impalpable or intangible as air (synset 300628872)"figures light and aeriform come unlooked for and melt away"; "aerial fancies"; "an airy apparition"; "physical rather than ethereal forms"