- The definition of a nadir is the lowest point.
An example of nadir is the Great Depression.
This woman has reached her nadir.
nadir definition by Webster's New World
- that point of the celestial sphere directly opposite to the zenith and directly below the observer
- the lowest point
Origin: Middle English ; from Middle French ; from Midieval Latin ; from Arabic naẓīr, in naẓīr as-samt, literally , opposite to the zenith ; from naẓīr, opposite plush as-samt, zenith
nadir definition by American Heritage Dictionary
- Astronomy A point on the celestial sphere directly below the observer, diametrically opposite the zenith.
- The lowest point: the nadir of their fortunes.
Origin: Middle English, from Medieval Latin, from Arabic nażīr (as-samt), opposite (the zenith), from nażara, to see, watch; see nị̄r in Semitic roots.
nadir - Science Definition