'Taskmaster' definitions:

Definition of 'taskmaster'

(from WordNet)
noun
Someone who imposes hard or continuous work

Definition of 'Taskmaster'

From: GCIDE
  • Taskmaster \Task"mas`ter\, n. One who imposes a task, or burdens another with labor; one whose duty is to assign tasks; an overseer. --Ex. i. 11. [1913 Webster]
  • All is, if I have grace to use it so, As ever in my great Taskmaster's eye. --Milton. [1913 Webster]