taskmaster

IPA: tˈæskmæstɝ

Someone who supervises workers, especially one who imposes hard or burdensome work.
(figuratively) A source of hard work or responsibility.

Examples of "taskmaster" in Sentences

Sestak is known as a taskmaster with one of the worst staff turnover rates in DC
Ruth Sheen was relieved to complete filming on 'taskmaster' Mike Leigh's latest film
My appointment with RFK, well known as a taskmaster who kept long hours, had been scheduled for 8:00 p.m.
Williams is known as a taskmaster, and the fact that he would allow his team to snarkily trash talk the Tarheels before heading to the Dean Dome after
The woman who could become America's next first lady is teasingly called the taskmaster by her friends, her task tonight, to sell themselves as an attractive first couple.