The word "sate still for" means to sit motionless or be idle. The opposite of this would be to move or take action. Some antonyms for this phrase could be to stand up, walk, run, dance, or even fidget. These words suggest movement and activity, which is the complete opposite of being sedentary. To sate still for too long can cause health problems, so it's important to incorporate exercises and movement into our daily routines. Being active not only keeps us healthy physically but also improves our mental well-being by releasing endorphins and reducing stress. Therefore, it is essential to include movement in our lives to stay healthy and happy.