The opposite of becomes useless is "becomes useful," indicating that something is no longer obsolete or ineffective but now serves a purpose. Other antonyms for becomes useless could be "becomes relevant," "regains usefulness," or "evolves into something valuable." When something becomes useful again, it may require modifications or updates to meet current needs or trends. Therefore, it is important to reassess the functionality of technology, products, and ideas periodically to ensure they remain useful and effective. In today's dynamic society, being adaptable and evolving is essential to prevent becoming useless.