The phrase "put on the shelf" means to delay or postpone something. Its antonyms include accelerate, hasten, expedite, advance, quicken, hurry, rush, and speed up. These antonyms signify the act of completing tasks more quickly or efficiently than previously planned. By adopting these antonyms, individuals and organizations can enhance their overall productivity while ensuring that projects remain on track. They can lead to increased motivation and confidence in one's abilities to complete tasks on time. Using these antonyms can help people and organizations avoid falling behind in their work and deliver the desired results promptly.