Ride shotgun for is an informal term that refers to sitting in the front passenger seat of a vehicle. It has become a popular phrase that conveys a sense of trust, camaraderie, and protection. Antonyms for ride shotgun for could include sitting in the back seat, being left behind, or not being included at all. These antonyms may imply a sense of exclusion, distrust, or indifference. However, it is important to note that antonyms for ride shotgun for may vary in different contexts and situations, prompting a range of emotions and attitudes.