Most transmarine refers to something that is located or occurs beyond the sea. Synonyms for this phrase could include words like international, overseas, foreign, external, or extraterritorial. Each of these words describes something that is outside of one's own country or territory. Other words that could be used as synonyms for most transmarine might include words like faraway, distant, or remote. Each of these words describes something that is located at a considerable distance from the speaker. When trying to describe a location or event that occurs beyond the sea, it is important to choose the right words to convey the intended meaning.