authoritarian

a person who behaves in a tyrannical manner; "my boss is a dictator who makes everyone work overtime"

characteristic of an absolute ruler or absolute rule; having absolute sovereignty; "an authoritarian regime"; "autocratic government"; "despotic rulers"; "a dictatorial rule that lasted for the duration of the war"; "a tyrannical government"

expecting unquestioning obedience; "the timid child of authoritarian parents"; "insufferably overbearing behavior toward the waiter"