autocratic vs tyrannic

autocratic and tyrannic both are adjectives.

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

As adjectives, autocratic and tyrannic are synonyms defined as:

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

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

autocratic (adjective)	tyrannic (adjective)
offensively self-assured or given to exercising usually unwarranted power	characteristic of an absolute ruler or absolute rule; having absolute sovereignty
characteristic of an absolute ruler or absolute rule; having absolute sovereignty