Terra-cotta is a type of ceramic material that is characterized by its reddish-brown hue. If you are looking for synonyms for the word "most terra-cotta", some terms you could use include brick-red, rust-colored, earthy, burnt orange, dark clay-colored, or coppery. These terms all describe shades that are closely related to the color of terra-cotta, and could be used to provide more specific descriptions in writing. Depending on the context, you might also consider words like clayey, loamy, or potters' field, which evoke similar associations with ceramic materials and the ground from which they are extracted.