The phrase "most trinitarian" refers to something that is closely related to the concept of the Holy Trinity in Christian theology. Some synonyms for this phrase could include "most divine," "most sacred," "most reverent," "most holy," or "most godly." These words all suggest a sense of awe and reverence for the divine, emphasizing the importance of the Trinity as a central tenet of Christian belief. In using these synonyms, one can convey a deep sense of respect and veneration for the sacred mystery of the Holy Trinity.