The phrase "busy workweek" refers to a week filled with a lot of work or tasks that keep a person occupied and not much free time available. Full definition
I return to Toronto on Friday, and although I have a very busy workweek right after, I plan on staying consistent for you guys, and I might even have a few tricks up my sleeves. (riddlethos.com)
Statistics show that it is still primarily mothers who add these activities onto their already busy workweeks. (slaw.ca)
It's time that could be spent on the thousand other important tasks we weren't able to touch during the busy workweek. (relevantmagazine.com)