oppressive vs tyrannous

oppressive and tyrannous both are adjectives.

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

As adjectives, oppressive and tyrannous are synonyms defined as:

oppressive and tyrannous: marked by unjust severity or arbitrary behavior

Other synonyms of oppressive include tyrannical.

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