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English definition of “nadir”

nadir

noun [S]     /ˈneɪ.dɪər/ US  /-dɚ/ formal
the worst moment , or the moment of least hope and least achievement : The defeat was the nadir of her career . → Compare zenithHigher and lower points of achievementSuccess and achievementsFailures
(Definition of nadir noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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