The phrase "threw in the towel" is often used to describe giving up on a task or goal. However, there are a variety of antonyms, or opposite expressions, that can be used to convey the opposite sentiment. For example, instead of giving up, one could "persevere," "persist," or "endure" through challenges. Alternatively, individuals could take a more proactive approach and "take action," "press forward," or "pursue" their goals. By seeking out antonyms for this common phrase, individuals can find inspiration and motivation to continue pushing towards success, rather than giving up at the first sign of difficulty.