A Line Off the Shoulder Ombre Prom Dresses with Belt, Purple Gradient Long Tulle Formal Dress UQ2436 Purple Satin A line Backless Long Prom Dress With Slit PSK521 US2 Custom Color Marcella Women's Manhattan One Shoulder Midi Dress Off White The asymmetrical skirt, characterized by its uneven hemline. While the exact origins are debated, some sources trace asymmetrical styles back to the late 1800s, and even earlier, with mentions of asymmetrical dresses An asymmetrical neckline is a design where one side of the neckline is different from the other creating a stylish, unbalanced look that adds visual interest and drama to a garment.