Throws the sponge is an idiom that refers to someone giving up or surrendering. Antonyms for this phrase include persevering, persisting, pressing on, and enduring. Instead of throwing in the towel, one could choose to soldier on, confront challenges directly, and work towards their goals with determination. These antonyms emphasize resilience, tenacity, and grit. Giving up is not always the best option, especially when faced with obstacles in life. When times get tough, it is essential to stay motivated and remind oneself that success often requires hard work and perseverance.