nadir has definitions from the field of astronomy
1
[ noun ] an extreme state of adversity; the lowest point of anything

Synonyms

low-water_mark

Used in print

(Jaroslav Pelikan, The Shape of Death: life, death and...)

At the nadir of that circuit is death .

Nevertheless , even at the nadir of the circuit the spiral of history belongs to God , and he still rules .

Related terms

adversity

2
[ noun ] (astronomy) the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected
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