tyrannical vs tyrannous

tyrannical and tyrannous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tyrannical	No	Yes	No	No
tyrannous	No	Yes	No	No

As adjectives, tyrannical and tyrannous are synonyms defined as:

tyrannical and tyrannous: marked by unjust severity or arbitrary behavior

Other synonyms of tyrannical include oppressive.

tyrannical (adjective)	tyrannous (adjective)
marked by unjust severity or arbitrary behavior	marked by unjust severity or arbitrary behavior
characteristic of an absolute ruler or absolute rule; having absolute sovereignty