Antonyms for the phrase "got one's act together" include "scattered," "disorganized," "incompetent," "unfocused," and "chaotic." These antonyms describe a lack of order and structure, indicating that an individual is not prepared or not capable of handling a given situation effectively. When someone has not "got their act together," they may seem unreliable or flaky, and their performance may suffer. In contrast, individuals who have "got their act together" exhibit a high level of preparedness, organization, and competency, and are better able to handle tasks and responsibilities efficiently.