Antonyms for the phrase "hangs in there" may include phrases like "gives up," "loses hope," "quits," or "throws in the towel." These phrases typically convey a sense of defeat or resignation, indicating that someone has decided to give up on a task or goal. Alternatively, antonyms may include phrases like "moves forward," "presses on," or "perseveres," which convey a sense of determination or resilience in the face of adversity. These types of phrases indicate that someone is willing to continue fighting for their goals, even when faced with challenges or setbacks.