adj. 25B6; adjective
a brilliant student : GIFTED, talented, able, adept, skilful; bright, intelligent, clever, smart, astute, intellectual; elite, superior, first-class, first-rate, excellent; informal brainy.
his brilliant career : SUPERB, glorious, illustrious, impressive, remarkable, exceptional.
(Brit. informal) we had a brilliant time : EXCELLENT, marvellous, superb, very good, first-rate, first-class, wonderful, splendid; informal great, terrific, tremendous, fantastic, sensational, fabulous, fab, ace, cool, awesome, magic, wicked; Brit. informal smashing, brill; Austral./NZ informal bonzer.
a shaft of brilliant light : BRIGHT, shining, blazing, dazzling, vivid, intense, gleaming, glaring, luminous, radiant; poetic/literary irradiant, coruscating.
brilliant green : VIVID, intense, bright, bold, dazzling.
stupid, bad, dark.