プログレッシブ和英中辞典(第4版)の解説
せんぷ【先負】
〔六曜の一つ〕a day on which it is supposed to be better to avoid disputes and hurried actions; a day supposed to be unlucky in the morning and lucky in the afternoon
日本語の解説|先負とは
〔六曜の一つ〕a day on which it is supposed to be better to avoid disputes and hurried actions; a day supposed to be unlucky in the morning and lucky in the afternoon