Adhering to whatever is customary, traditional, or generally accepted.
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.
Conforming to the accepted, established, or traditional doctrines of a given faith, religion, or ideology.
Acceptable, proper or correct; in accordance with the rules.
Well grounded or justifiable, pertinent.
Of an argument: whose conclusion is always true whenever its premises are true.
Genuine - as distinguished from efficient or regular - sacrament.
Related to the current topic, or presented within context, relevant.
Of a formula or system: such that it evaluates to true regardless of the input values.