also: あくび
unlucky day; bad day
Refers to a day considered inauspicious or unlucky, often in the context of traditional calendars or fortune-telling.
Today is an unlucky day, so it's better not to do anything important.
Today is an unlucky day, so it's better to avoid making important decisions.
We chose the moving date avoiding any unlucky days.
That day fell on an unlucky day, so we postponed the wedding.