Nadir definition

nādər, -dîr
The definition of a nadir is the lowest point.

An example of nadir is the Great Depression.

noun
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(astronomy) A point on the celestial sphere directly below the observer, diametrically opposite the zenith.
noun
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That point of the celestial sphere directly opposite to the zenith and directly below the observer.
noun
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The lowest point.
noun
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The point on the celestial sphere that is directly below the observer (90 degrees below the celestial horizon ).
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The point of the celestial sphere, directly opposite the zenith; inferior pole of the horizon; point of the celestial sphere directly under the place where we stand.
noun
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(figuratively) The lowest point; time of greatest depression.
noun
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(astronomy) The axis of a projected conical shadow; the direction of the force of gravity at a location; down.

The nadir of the sun is the axis of the shadow projected by the Earth.

noun
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(beekeeping, archaic) An empty box added beneath a full one in a beehive to give the colony more room to expand or store honey.
noun
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(beekeeping) To extend (a beehive) by adding an empty box at the base.
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A male given name.
pronoun
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The lowest point.

The nadir of their fortunes.

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Other Word Forms

Noun

Singular:
nadir
Plural:
nadirs

Origin of nadir

  • Middle English from Medieval Latin from Arabic naẓīr (as-samt) opposite (the zenith) from naẓara to see, watch nṯr in Semitic roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Unknown. It has been suggested that it is from Arabic نَزِير (nazÄ«r, “rare, trivial"), but if it is Arabic, perhaps more likely would be نَذِير (naḍīr, “auspicious, boding well (?)") Represents the word 'rare' in hebrew

    From Wiktionary

  • From Medieval Latin nadir, from Arabic نَظِيرُ السَّمْت (naẓīru as-samt), composed of السَمْتُ (as-samt, “the zenith") and نَظِير (naẓīr, “counterpart, corresponding to").

    From Wiktionary