nadirEnglish → FrenchOxford English–Frenchnadir /BrE ˈneɪdɪə, ˈnadɪə, AmE ˈneɪdər, ˈneɪdɪr / noun 1 (celestial point) nadir m 2 figurative (low point) point m to reach a nadir tomber on ne peut plus bas