The phrase "gets out of system" refers to the process of purging or eliminating something from one's body, mind, or environment. Some antonyms for this term include "collecting," "absorbing," "retaining," "accumulating," and "storing." These words indicate that the opposite of getting something out of your system is to keep it in. By holding onto negative thoughts, emotions, or habits, one can become overwhelmed and unable to make progress. Therefore, it is vital to find healthy outlets for releasing stress and negativity, such as exercise, meditation, or therapy. By actively working to avoid retaining negative energy, we can cultivate a happier, healthier, and more balanced life.