A brilliant performance is one that is characterized by both BRAVURA and ECLAT. BRAVURA is a term used to describe a show of skill or technique, often in the context of a performance such as a musical recital or a theatrical production. ECLAT is a French word meaning 'SPLENDOR' or 'BRILLIANCE, ' and is often used to describe a performance that is particularly impressive or memorable. Together, these two words capture the essence of a brilliant performance.