The word "brilliance" refers to superb performance, excellent results, or exceptional achievement. Synonyms for "brilliance in performance" include dazzling, impressive, outstanding, remarkable, superb, exceptional, excellent, and extraordinary. These words are often used to describe individuals who have demonstrated exceptional skill and talent in their field, whether it be in sports, music, or professional life. Their performance is exceptional, awe-inspiring, and often in a league of its own. Some other words that may be used to describe such dazzling feats of performance include outstanding, phenomenal, exceptional, and unparalleled. These synonyms help to capture the essence of excellence and achievement that are often associated with brilliance in performance.