Adjective
1. 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"2. likened to a dictator in severity
3. expecting unquestioning obedience;
"he was imperious and dictatorial""the timid child of authoritarian parents""insufferably overbearing behavior toward the waiter"