1.Definition: characteristic of an absolute ruler or absolute rule; having absolute sovereignty

"A dictatorial rule that lasted for the duration of the war"

Related Adjective(s):authoritarian, autocratic, despotic, tyrannic, tyrannical

2.Definition: expecting unquestioning obedience

Related Adjective(s):authoritarian, overbearing

3.Definition: of or characteristic of a dictator

"Dictatorial powers"