1.Definition: concerned with sacred matters or religion or the church
"Religious texts", "A member of a religious order"
2.Definition: extremely scrupulous and conscientious
"Religious in observing the rules of health"
3.Definition: having or showing belief in and reverence for a deity
"A religious man", "Religious attitude"
4.Definition: of or relating to clergy bound by monastic vows
"The religious or regular clergy conducts the service"