The antonyms for the word "loses edge" would be "sharpens," "enhances," "improves," and "refines." When something loses its edge, it becomes dull and ineffective, making it difficult to accomplish its intended purpose. On the other hand, when something sharpens, it becomes more refined and precise, making it easier to achieve a desired outcome. Enhancing and improving something means bringing it to a higher level of performance, while refining it means making it more sophisticated and polished. So, by using these antonyms, we can convey a positive and proactive message of progress and development, rather than a negative and stagnant one of decline and deterioration.