The phrase "brake short" is typically used to describe a sudden or abrupt stop, often in reference to a vehicle. However, there are several antonyms that can be used to describe the opposite of stopping abruptly. Words such as accelerate, speed up, or propel can convey the idea of moving forward quickly. Other options include glide, coast, or drift, which indicate a gradual slowing down or being carried along by momentum. These antonyms can be used to create a sense of fluidity and movement, as opposed to the suddenness and jarring feeling of braking short.