ethereal

形容词 ethereal:

1. characterized by lightness and insubstantiality; as impalpable or intangible as air
   同义词：aeriform, aerial, airy, aery
2. of or containing or dissolved in ether
3. of heaven or the spirit
   同义词：celestial, supernal
4. characterized by unusual lightness and delicacy
   同义词：gossamer

1. Monet's ethereal descriptions of haystacks and water lilies.
   莫内关于干干草垛和睡莲的精妙描绘
2. Resembling a dream; ethereal or vague.
   如梦的象梦似的; 飘渺的或朦胧的
3. She has an ethereal beauty.
   她有一种微妙飘逸之美。
4. The music has an ethereal quality.
   这段乐曲给人一种飘渺的感觉。

e.the.re.al

adj.（形容词）
Characterized by lightness and insubstantiality; intangible.
轻飘的，虚空的；无形的
Highly refined; delicate.See Synonyms at airy
优美的；精致的参见 airy

Of the celestial spheres; heavenly.
天上的；天国的
Not of this world; spiritual.
非物质的；精神（上）的
Chemistry Of or relating to ether.
【化学】 乙醚的：包含于或有关于乙醚的

来源：
From Latin aetherius
源自 拉丁语 aetherius
from Greek aitherios
源自 希腊语 aitherios
from aithôr [upper air]
源自 aithôr [上层空气]

【引伸】
ethe.real.ity
ethe.really
adv.（副词）