midweek
n.n. the middle of the week. You use this to talk about the days between Monday and Friday, especially when you want to avoid the busier start or end of the week.
n. the middle portion of the week, typically referring to Tuesday, Wednesday, and Thursday.
I usually work the most on midweek.
The restaurant is always busy on midweek nights because people are off work and looking for a meal.
While the weekend sees a significant increase in foot traffic, the midweek remains the most profitable period for the local bakery as it caters to office workers.
From mid- + week. Compare Saterland Frisian Midwiek (“Wednesday”, literally “midweek”), German Low German Middeweek (“Wednesday”, literally “midweek”), German Mittwoch (“Wednesday”, literally “midweek”).