Recoil/rɪˈkɔɪl/ Definition 1 of 3Pro Tip 1/3Physical Response Used to describe an involuntary physical reaction to a powerful event or force. The boxer recoiled from a heavy punch. Pro Tip 2/3Unexpected Force Often used when the backward movement happens by surprise or without intention. The rope snapped, causing him to recoil. Pro Tip 3/3Mechanical Action Commonly describes the backward movement of mechanical objects, like guns, after operation. Upon firing the rifle, he was pushed back by the recoil.