Paganical is an adjective that refers to someone or something related to paganism, an ancient religious belief system. Although this term is not widely known, there are several synonyms that can be used interchangeably. One such synonym is "heathen", which also describes a person who follows a non-Christian religion. Another replacement could be "polytheistic", indicating the belief in multiple gods. Additionally, "animistic" can be used to describe a system of worship that believes in the existence of spirits inhabiting objects or natural phenomena. Lastly, "non-Christian" or "non-Abrahamic" can be used to simplify and include any faith that does not adhere to Christianity, Judaism, or Islam.