What is the term used for the reverse of mounting a horse?

The term used for the reverse of mounting a horse is "dismounting." This refers specifically to the action of getting off the horse after riding.

In the context of horseback riding, dismounting is a critical skill that involves properly removing oneself from the horse while ensuring the safety and balance of both the rider and the horse. Proper technique when dismounting helps avoid accidents or undue stress on the horse.

The other terms such as "unmounting," "desaddling," and "disengaging" do not accurately reflect the action of getting off the horse. While "unmounting" might seem like it could fit, it is not a standard term used in equestrian vocabulary. "Desaddling" refers to the process of removing the saddle from the horse, and "disengaging" generally pertains to the horse's movement or a rider's control and is not commonly used in reference to the act of getting off the horse.