There are a plethora of synonyms that can be used instead of "old-time religions". Some of the possible choices include: traditional religion, conservative religion, ancient faith, historic belief, classic spirituality, vintage religiosity, timeless worship, and antiquated devotion. All of these synonyms convey a sense of a religious practice that derives its authority from a bygone era, emphasizing traditional customs and values that are less flexible and subject to change. While these terms have slightly different connotations, they all convey a sense of an older, more established form of spirituality that contrasts with more contemporary or innovative approaches to faith.