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English definition of “nadir”

nadir

noun [S] uk   /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.
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Higher and lower points of achievementSuccess and achievementsFailures
(Definition of nadir from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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