げつようび月曜日getsuyoubi
1.
The second day of the week, following Sunday, typically recognized as the first day of the work or school week in many cultures.
2.
A day commonly associated with the beginning of new tasks or responsibilities, often viewed as a fresh start following the weekend.
3.
A calendar day designated for various events and activities, often linked to conventional business hours and routines.
Example:
月曜日はいつも憂鬱だ。