It depends. If you are talking about the Eastern Orthodox Church, then yes, it is capitalized. But if you are using the adjective to describe something as being proper, then no, it is not capitalized. For example: The Orthodox Christians believe that their worship is the orthodox way of faith.
No, seasons are not capitalized.
Wikipedia is capitalized.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
No it shouldn't be capitalized.
Russian orthodox. Greek orthodox. Coptic orthodox. Antiochia orthodox. Eastern orthodox. Ethiopian orthodox.
They are called Eastern Orthodox Christians or just Orthodox Christians.
Yes, Was it a dog? Hahaha It WAS capitalized! Was can be capitalized.
No, seasons are not capitalized.
A ‘Greek Orthodox’ Christian is a Christian who comes under the Orthodox Church of Greece. In the rest of the world, he or she would be known as an Orthodox Christian. The name "greek orthodox" should not be used to describe Orthodox Christians in other countries outside of Greece. There is no nationality in the Orthodox Church. It is open to people of all backgrounds, races and cultures. Orthodox Christians in Japan are Japanese Orthodox, Orthodox Christians in Russia are Russian Orthodox, Orthodox Christians in America are American Orthodox, etc.
No, it is not capitalized.
No it's not capitalized.
Wikipedia is capitalized.
No, keywords do not have to be capitalized.
No it shouldn't be capitalized.
No, "ibid" is not capitalized.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.