Definition of "week-day" []

• Any day of the week except Sunday: often used adjectively. (noun)

The Century Dictionary (Public Domain)

• ""To go to lunch with me on a week-day," Daylight said, divining the drift of her uncompleted argument."
• "Nor could he have guessed that the particular five dollars that belonged to him had been appropriated by the business manager for the painting of his house in Alameda, which painting he performed himself, on week-day afternoons, because he could not afford to pay union wages and because the first scab he had employed had had a ladder jerked out from under him and been sent to the hospital with a broken collar-bone."
• "A large pool, restaurant, etc. I paid 900 pesos for a double on the weekend, but the price dropped to 650 pesos for a week-day night."