adj approved; conventional.
2. orthodox ·adj according or congruous with the doctrines of scripture, the creed of a church, the decree of a council, or the like; as, an orthodox opinion, book, ·etc.
3. orthodox ·adj sound in opinion or doctrine, especially in religious doctrine; hence, holding the christian faith; believing the doctrines taught in the scriptures;
opposed to heretical and heterodox; as, an orthodox christian.