Synodal is a term used to describe anything related to a synod, which is a council of church leaders. Synodal has a few synonyms that can be used interchangeably. One such synonym is "council" which is a term used to describe a group of people who are assembled for a specific purpose. Another synonym is "convocation", which refers to a group of people called together for a formal assembly. Additionally, "assembly" can be a similar word to synodal, as it describes a group of people gathered for a specific purpose. Finally, "councilor" can also be used in place of synodal, as it refers to a member of a council or a group of church leaders.