Definition of brilliance

• great brightness; "a glare of sunlight"; "the flowers were a blaze of color"
• the quality of being magnificent or splendid or grand; "for magnificence and personal service there is the Queens hotel"; "his `Hamlet lacks the brilliance that one expects"; "it is the university that gives the scene its stately splendor"; "an imaginative mix of old-fashioned grandeur and colorful art"; "advertisers capitalize on the grandness and elegance it brings to their products"
• unusual mental ability