The antonyms of "stayed in line" are words that suggest going against rules or not complying with expected behavior. Some possible antonyms include: Deviated, straggled, veered, diverged, wandered, roamed, drifted, meandered, wandered off, strayed away, and so on. These antonyms indicate a lack of discipline or disregard for social norms. While staying in line suggests following a set course of action, these antonyms suggest a failure to conform. In many situations, such as when traveling or in a professional environment, staying in line can be important to avoid confusion or inconvenience. However, at times, the ability to stray from a predetermined path can lead to creativity and thinking outside the box.