Heptagonal is a term used to describe a seven-sided shape or object. Some synonyms for heptagonal include septagonal, septangle, and seven-sided. Other options include having seven angles, having seven vertices, and being a polygon with seven sides. Another way to describe heptagonal is to say it is a shape that is a combination of seven straight lines or segments. When discussing shapes and structures, using synonyms can help vary language and keep communication clear. Whether you are describing a building, a piece of art, or a geometric concept, using synonyms for heptagonal can add precision and depth to your language.