lucky day; auspicious occasion
Formal, literary term for a day or occasion considered lucky or auspicious. Often used in ceremonial or written contexts. Compare with the more common 吉日 (きちじつ/きちにち).
See also: 吉日 (きちじつ)
Today being an auspicious day, we will hold the wedding ceremony.
They chose an auspicious day to decide the opening date of the store.