The phrase "didst one's thing" refers to someone doing what they were meant to do or doing what they enjoy doing. Some antonyms for this phrase could include "procrastinate," "stall," "hesitate," "dawdle," or "loiter." These words indicate that someone is not taking action or delaying their tasks or goals. Additionally, antonyms for "didst one's thing" could be "misaligned," "detached," "unfocused," or "distracted." These words convey a lack of direction or focus, suggesting that someone is not fully engaged in their work or activities. Overall, these antonyms highlight the importance of being proactive and fully focused on one's goals and tasks.