ethereal

Từ điển American Heritage Dictionary 4th

e·the·re·al (ĭ-thîrʹē-əl)adj.
1. Characterized by lightness and insubstantiality; intangible.
2. Highly refined; delicate. See Synonyms at airy.
3.
a. Of the celestial spheres; heavenly.
b. Not of this world; spiritual.
4. Chemistry. Of or relating to ether. [From Latin aetherius, from Greek aitherios, from aithēr, upper air.] e·the're·alʹi·ty (-ălʹĭ-tē) or e·theʹre·al·ness n.e·theʹre·al·ly adv.

• Từ đồng nghĩa / Synonyms:
  gossamer, celestial, supernal, aeriform, aerial, airy, aery