If you say that someone is dogmatic, you are critical of them because they are convinced that they are right, and refuse to consider that other opinions might also be justified.
例句
Many writers at this time held rigidly dogmatic views...這時期有很多作家固執己見。The regime is dogmatic, and no one dares to express personal opinions.該政權很專制，沒有人敢表達個人意見。
英漢詞典釋義
adj.
固執己見的
You can’t is dogmatic in matters of taste.對于個人愛好的事,何必這樣自以為是。
英英詞典釋義
Adjective
1. characterized by arrogant assertion of unproved or unprovable principles