tyrannic vs dictatorial

tyrannic and dictatorial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tyrannic	No	Yes	No	No
dictatorial	No	Yes	No	No

As adjectives, tyrannic and dictatorial are synonyms defined as:

tyrannic and dictatorial: characteristic of an absolute ruler or absolute rule; having absolute sovereignty

Other synonyms of tyrannic include authoritarian, autocratic, despotic, tyrannical.

tyrannic (adjective)	dictatorial (adjective)
characteristic of an absolute ruler or absolute rule; having absolute sovereignty	of or characteristic of a dictator
	expecting unquestioning obedience
	characteristic of an absolute ruler or absolute rule; having absolute sovereignty