Pre-Christian refers to the time before Christianity became the dominant or official religion, typically in reference to historical periods. However, there are several synonyms that can be used to imply the same meaning as pre-Christian. These synonyms include "pre-Abrahamic," which refers to any time before the Abrahamic religions (Judaism, Christianity, and Islam) emerged. Another synonym is "pagan," which describes any religion or belief system that is not Abrahamic in nature. Lastly, the term "pre-Christendom" can be used to explain the era before Christianity became an established socio-political power. Overall, these synonyms can help writers and historians reference historical periods when Christianity did not have a dominant role.