帝てい日じつMeanings1nounlucky dayRefers to a day considered auspicious or fortunate, often in a traditional or calendrical context.今日きょうは帝てい日じつだから、結けっ婚こん式しきを挙あげるのに良よい日ひだ。Today is a lucky day, so it's a good day to hold a wedding.
