The antonyms for the term "climbs over" would be "descends under" or "stays on the ground." These antonyms describe actions that are opposite to the act of climbing over something. While descending under something involves going down, staying on the ground simply suggests that someone does not climb over anything at all. In other cases, one can also use other antonyms such as "avoids" or "circumnavigates" to describe actions that do not involve climbing over something. These words can be used to provide clarity and avoid confusion when describing actions that involve movement.