When someone achieves great success and surpasses all expectations, we often use the phrase "beyond successful" to describe it. However, there are a number of alternative words that can be used in place of this phrase. "Triumphant" is a powerful synonym that conveys a sense of victory and accomplishment. "Unprecedented" suggests that the achievement is truly unique and has never been seen before. "Incredible" conveys the idea of something truly remarkable or unbelievable. "Magnificent" suggests a grandeur or impressiveness that goes beyond mere success. Ultimately, the right synonym will depend on the exact context and the feeling that you want to convey.