The phrase "blackens name" describes a situation where someone's reputation or image is tarnished. The antonyms for this phrase could be "enhances reputation," "promotes image," "elevates status," "uplifts reputation," or "builds credibility." When someone's name is blackened, it can have a negative impact on their personal and professional life. Therefore, it is crucial to maintain a good reputation and to engage in activities that add value and positive recognition to your name. Being truthful, reliable, and responsible are some of the ways to protect your name from being blackened. Ultimately, a good name is a precious asset that should be guarded with utmost care.