The phrase "busting out" typically connotes freedom, release, and liberation. However, its antonyms suggest confinement, suppression, and restriction. Words like "held back," "contained," and "restrained" indicate a sense of being trapped or unable to break free from one's limitations. "Inhibited," "restricted," and "repressed" imply a sense of holding oneself back from fully exploring one's potential. Conversely, antonyms for "busting out" might include "settling in," "hunkering down," or "digging in," which suggest a sense of grounding, stability, and commitment. Ultimately, the antonyms for "busting out" reflect a range of attitudes and behaviors towards freedom and constraint.