Religious In English Proaspat . Of, relating to, or concerned with religion; Spiritual, theological, scriptural, doctrinal, church, churchly, ecclesiastical, holy, divine, celestial, heavenly, sacred, devotional, sanctified, consecrated, dedicated, hallowed. Belonging or relating to a monastic order or other group of people who are united by their practice of religion. Having a strong belief in a god or gods: Religious / rɪˈlɪdʒəs / adj.