Cup-shaped is one of the many terms that describe a particular shape of an object. However, if we were to look for antonyms for this term, we might consider words that describe shapes that are the opposite of cup-shaped. Some possible antonyms for cup-shaped could be flat, square, angular or rectangular. These shapes can be found in various objects, such as plates, tables, boxes, or cubes. Although they differ from the curved, rounded shape of a cup, they can still be aesthetically pleasing and functional in their own way. The variety of shapes and forms in the world around us is what makes it interesting and diverse.