From Longman Dictionary of Contemporary Englishopinionatedo‧pin‧ion‧at‧ed /əˈpɪnjəneɪtɪd/ adjective THINK/HAVE THE OPINION THATexpressing very strong opinions about things I found him very arrogant and opinionated.
Examples from the Corpus
opinionated• I really like opinionated actors who have a strong idea of their character.• Dana was opinionated and liked to have the last word in an argument.• Derek is bombastic, opinionated and very happy to correct his wife in public.• It was a changing group of opinionated, articulate people possessed of varying degrees of talent and of variable character.• opinionated professors• But now she will be able to return to her outspoken, opinionated self.• Representing a distinct, highly opinionated voting bloc, his was a political voice that could not be ignored.• And she looks up to me for what she sees as my drive, my opinionated wit. 