Rear-ender, a term commonly used to describe a traffic accident involving one vehicle colliding into the back of another, refers to an unfortunate event that often leads to damage, injury, and inconvenience. However, there are some antonyms to this term. For instance, a safe driver who follows traffic rules and regulations, and maintains a safe distance from vehicles ahead can be referred to as a "front runner." Similarly, a driver who slows down, stops or pulls away from the vehicle behind could be called a "back-off" driver. These antonyms signify that safe driving practices are not only a wise choice but also a means to avoid rear-end accidents.