opinionated

US /əˈpɪn.jə.neɪ.t̬ɪd/
UK /əˈpɪn.jə.neɪ.t̬ɪd/
"opinionated" picture
1.

having or expressing strong opinions

:
He's very opinionated and rarely changes his mind.
She's a talented but somewhat opinionated writer.