Brilliant
BRILL'IANT, adjective [Eng. beryl and pearl.]
1. Sparkling with luster; glittering; as a brilliant gem; a brilliant dress.
2. Splendid; shining; as a brilliant achievement.
Washington was more solicitous to avoid fatal mistakes, than to perform brilliant exploits.
BRILL'IANT, noun A diamond of the finest cut, formed into angles, so as to refract the light, by which it is rendered more glittering.
1. In the manege, a brisk, high-spirited horse, with a stately carriage.