Antonyms for the phrase "keeps truckin'" may include "gives up," "quits," "stops," or "abandons." These antonyms indicate a lack of perseverance or determination, suggesting that the person has given up on a particular task or endeavor. Alternatively, antonyms may include "pauses," "takes a break," or "relaxes," indicating a deliberate and temporary cessation of work or effort. While "keeps truckin'" implies a steady and persistent approach, antonyms offer a range of contrasting attitudes and behaviors, highlighting the importance of adaptability and flexibility in achieving one's goals.