In strict accordance with the rules, especially of card games; in the proper or expected manner.
Of a branch of Judaism.
Of pollen, seed, or spores: viable for a long time; viable when dried to low moisture content.
Of the eastern churches, Eastern Orthodox.
Adhering to whatever is customary, traditional, or generally accepted.
Conforming to the accepted, established, or traditional doctrines of a given faith, religion, or ideology.