The word "more amphibian" essentially means something that is more suited for amphibians or resembles their characteristics. Synonyms for this term include aquatic, semi-aquatic, marshy, swampy, and water-loving. These words describe an environment or condition that is conducive to the lifestyle of amphibians. Another synonym for "more amphibian" is "frog-like," which indicates a similar physical appearance or behavior. Using these synonyms can help to add descriptive and colorful language to writing, particularly in science or nature-related contexts. Overall, these terms convey a sense of uniqueness and specificity that can enrich one's written or spoken communication.