When we hear the phrase "brutal taskmaster," we all picture the same thing - a demanding boss who expects nothing but perfection. But what if we need to express this idea in different words? Here are few synonyms: 1. Ruthless supervisor - someone who takes a no-nonsense approach to managing people and has little regard for their personal well-being. 2. Demanding employer - one who sets high standards and holds their employees accountable for meeting them. 3. Harsh overseer - someone who rules with an iron fist and does not tolerate any deviation from the set plan. 4. Unforgiving manager - one who does not show mercy to those who fail to meet their expectations or fall short of their targets. 5. Stern boss - someone who is firm and uncompromising in their leadership style and expects nothing but the best from their employees.