Synonyms for Bright:

adj.

all (adjective)
brilliant, vivid, smart.
cheerful (adjective)
cheerful, vivacious, friendly, glad, congenial, buoyant, genial, joyful, cordial, pleased, pleasant, jaunty, lighthearted, spirited, affable, warm, cheery, animated, lively, sunny, sparkling, optimistic, complaisant, happy, easygoing, agreeable, amiable, jolly, merry.
colorful (adjective)
florid.
discriminating (adjective)
discerning.
effulgent (adjective)
fluorescent.
elegant (adjective)
polished.
famous, outstanding (adjective)
eminent, illustrious, glorious.
fortunate (adjective)
healthy.
hopeful (adjective)
promising.
intelligent (adjective)
perspicacious, clever, Comprehending, cogent, genius, profound, knowledgeable, brilliant, erudite, alert, wise, knowing, astute, gifted, worldly, brainy, capable, smart, discerning, intellectual, sagacious, canny, sophisticated, intelligent, encyclopedic, sharp.
light (adjective)
aglow, scintillant, well lit, phosphorescent.
lighted (adjective)
illuminated.
opalescent (adjective)
opaline.
pleasurable (adjective)
charming, jolly, agreeable, sunny, joyful, entertaining, enchanting, favorable, ambrosial, pleasant, pleasurable, pleasing, sweet, blissful, enlivening, unobjectionable, cheerful, bonny, fine, enjoyable, amusing, delightful, delectable.
prismatic (adjective)
opalescent.
promising (adjective)
up-and-coming.
sharp (adjective)
sharp.
vivid in color (adjective)
colored, colorful, deep, ruddy, clear, rich, tinted.

adv.

all (adverb)
brilliantly, brightly.

n.

academic, discerning, clear-sighted. dynamic, energetic, vigorous, alive, active, fair, vital, cloudless, animated. feasible, healthy, sure, up-and-coming, budding, sure-fire, Irradiant. clean, cold, rich, bold, bleached, colors, color-coded, chintzy, brash. fortunate, luck, benign, propitious, good. chipper. ability, Sharp-witted, alert. splendid (noun)
eminent, illustrious, famous.
vivid (noun)
deep, colored, tinted, exotic, ruddy, gorgeous, rich, florid.

Other synonyms:

chipper, fortunate, colored, healthy, benign, fair. chintzy, propitious, rich, deep. sure, cold. clean. good. illuminated
lighted.
lighted
illuminated.
prominent
bold.
shining
resplendent.
shiny
shiny.
unclouded
clear.

Usage examples for bright

  1. How bright the days! – Winning His Way by Charles Carleton Coffin
  2. Why such darkness under so bright a sun! – The Martian by George Du Maurier
  3. How bright the sky can be after the clouds are driven out of it! – Lily Pearl and The Mistress of Rosedale by Ida Glenwood