1. Having little or no perceptible weight; so light as to resemble air.
2. Not practical or realizable; speculative; SYN. impractical, visionary.
3. Open to or abounding in fresh air; SYN. airy.
4. Characterized by lightness and insubstantiality; as impalpable or intangible as air
Nebeski čist, oduhovljen, nežan, duhovni; hem. sličan etru, koji ima svojstva etra. (grč.)