Jump ups refer to a type of exercise where one jumps up from a squatting position repeatedly. As for antonyms of this term, we can consider words that describe a lack of movement or physical activity. These words include words like motionless, stationary, immobile, and sedentary. However, if we consider antonyms that relate more specifically to jumping, we can consider words like sit down, stay put, or stand still. These words describe actions that are the complete opposite of jumping up, as they imply staying in one spot rather than bouncing up and down. So, if you are looking for a way to describe the opposite action of jump ups, consider using these antonyms to add variety to your writing.