Most synodical refers to something that is most closely related to a synod, which is a council of church officials who gather to make decisions about doctrine, governance, and other aspects of church life. Some synonyms for the word most synodical include ecclesiastical, religious, theological, and canonical. Ecclesiastical refers to anything relating to the Christian Church, while religious refers to anything related to religion in general. Theological refers to the study of religious beliefs and doctrines, while canonical refers to laws or rules laid down by a religious authority. These synonyms can be used interchangeably with most synodical to describe something that is related to churches or religious institutions.