The antonyms for the term "curved shape" can be its opposite, the straight shape or geometrical shape. The geometrical shape is a combination of straight lines and angle, such as squares, rectangles, hexagons, and octagons. Whereas, the straight shape refers to a line or an object that has no curvature. The straight shapes can be comprised of lines, squares, rectangles, and circles. The straight and geometrical shapes contrast the organic nature of the curved shape, which signifies motion and fluidity. The use of different shapes in design and illustration is critical to conveying ideas and messages, highlighting contrasts between objects, emphasizing specific aspects of objects, and making them visually appealing.