tyrannous vs oppressive

tyrannous and oppressive both are adjectives.

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

As adjectives, tyrannous and oppressive are synonyms defined as:

tyrannous and oppressive: marked by unjust severity or arbitrary behavior

Other synonyms of tyrannous include tyrannical.

tyrannous (adjective)	oppressive (adjective)
marked by unjust severity or arbitrary behavior	marked by unjust severity or arbitrary behavior
	weighing heavily on the senses or spirit