Setting motion is a phrase that refers to starting something or initiating a process. Antonyms for this phrase would include stopping, halting, or ceasing. These words imply the opposite action of setting motion, indicating the end of movement or activity.
Another antonym for setting motion could be stagnation, suggesting a lack of progress or growth. Alternatively, some might use the term "idle" to describe a lack of movement or action.
In the context of business, antonyms for setting motion could include "canceling" a project or "putting on hold" a plan. Meanwhile, in the realm of personal endeavors, antonyms for setting motion could include "dropping" a hobby, or "abandoning" a goal.
Overall, antonyms for setting motion describe a lack of activity, growth, or progress.