auspicious day; good day; lucky day
A formal or literary term for a day that is considered favorable, lucky, or beautiful, often used in contexts like wedding dates or ceremonial occasions.
結婚式には佳日を選びました。
We chose an auspicious day for the wedding.
今日はまさに佳日だ。
Today is truly a beautiful day.
大安 refers specifically to the most auspicious day in the six-day Buddhist calendar cycle, while 佳日 is a general term for a good day.
Standard kanji spelling; 佳 carries a sense of 'auspicious, beautiful'.
Variant kanji spelling; 嘉 also means 'auspicious, good' but is less common.
From 佳 (auspicious, beautiful) + 日 (day). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of a favorable day.