Adj. | 1. | endomorphic - having a squat and fleshy build; "a pyknic practical joke" fat - having an (over)abundance of flesh; "he hadn't remembered how fat she was" ectomorphic - having a build with little fat or muscle but with long limbs mesomorphic, muscular - having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer |