harshly uninviting or formidable in manner or appearance; "a dour, self-sacrificing life"; "a forbidding scowl"; "a grim man loving duty more than humanity"; "undoubtedly the grimmest part of him was his iron claw"- J.M.Barrie
a member of a religious order who is bound by vows of poverty and chastity and obedience
having or showing belief in and reverence for a deity; "a religious man"; "religious attitude"
concerned with sacred matters or religion or the church; "religious texts"; "a member of a religious order"; "lords temporal and spiritual"; "spiritual leaders"; "spiritual songs"
extremely scrupulous and conscientious; "religious in observing the rules of health"