Collocations for orthodox - adj.

be
His ideas are all fairly orthodox.

extremely, fairly, very, etc.
I am not a very orthodox kind of teacher.

highly, strictly
This is the strictly orthodox view.

religiously (esp. AmE)

Orthodox is used with these nouns:
approach, belief, bishop, Christian, Christianity, congregation, doctrine, economics, Jew, Judaism, medicine, Muslim, religion, theology, treatment