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ethereal, aeriform, aerial, airy, aery | characterized by lightness and insubstantiality; as impalpable or intangible as air | ||
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airy | having little or no perceptible weight; so light as to resemble air | ||
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airy, aired | open to or abounding in fresh air | ||
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windy, airy, impractical, visionary, Laputan | not practical or realizable; speculative |