(1) Having or exhibiting balanced proportions or the beauty that results from such balance. (2) Corresponding in size, shape, or other qualities on opposite sides of a dividing line or plane or around a center.
Example:
Noting the dents in both front fenders, Robert comforted himself that at least his car was now symmetrical.
A key element in the appeal of most formal gardens is their symmetrical design, and symmetry plays a large part in the timeless beauty of Greek temples. Of course, the opposite can also be true. Cindy Crawford was not the first person to discover that a certain lack of symmetry can add interest to the human face.