Source : WordNet®

brilliance
     n 1: great brightness; "a glare of sunlight"; "the flowers were a
          blaze of color" [syn: {glare}, {blaze}]
     2: the quality of being magnificent or splendid or grand [syn:
        {magnificence}, {splendor}, {splendour}, {grandeur}, {grandness}]
     3: unusual mental ability [syn: {genius}]