Un horsed is a term often used in the context of horse riding, which means to fall off a horse or become dismounted. The antonym for this word is to stay mounted, stay on, or remain astride on a horse. It is important for riders to try their best to stay mounted to prevent injuries and have a better riding experience. Other antonyms for un horsed include to remain seated, to stay on top, and to keep control. For new riders or those experiencing difficulties with horseback riding, it can be helpful to practice mounting and dismounting frequently. This helps develop muscle memory and balance, which can reduce the chance of becoming un horsed.