Nadir

['neɪdɪə;'nædɪə] or ['nedɪr]

解释:

(noun.) the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected.

(noun.) an extreme state of adversity; the lowest point of anything.

卡莱尔编辑--From WordNet

解释:

(n.) That point of the heavens, or lower hemisphere, directly opposite the zenith; the inferior pole of the horizon; the point of the celestial sphere directly under the place where we stand.

(n.) The lowest point; the time of greatest depression.

布雷特整理

解释:

n. the point of the heavens diametrically opposite to the zenith: the lowest point of anything.

整理:莱缪尔