Brightness

Noun

 * 1) the quality of being bright
 * 2) the perception elicited by the luminance of an object
 * 3) intelligence, cleverness

Adjectives for Brightness
tranquil; dazzling; artificial; scintillant; starry; shifting; shining; superficial; painful; intolerable; transcendent; bewildering; enlivening; unfathomed; expansive; glowing; gradual; sharp; windy; steely; rising; cold; blinding; unmoving; burning; unwonted; fiery; suspicious; poisonous; crystal.

Thesaurus
resplendence, resplendency, richness, rosy expectation, sanguine humor, sanguineness, saturation, savvy, sharp-wittedness, sharpness, sleeplessness, smartness, smarts, splendidness, splendor, splendorousness, splendrousness, sprightly wit, streaming light, sublimity, sunniness, sunny side, susceptibility, talent, teachability, teachableness, tint, tone, trainableness, value, vividness, wakefulness, warm color, willingness, winsomeness, Munsell chroma, Technicolor, acuity, acuteness, adroitness, agility, alertness, aptitude, aptness, attention, attentiveness, auspiciousness, beneficence, benevolence, benignancy, benignity, blare, blaze, blazing light, blinding light, blitheness, blithesomeness, braininess, bright color, bright light, bright side, brilliance, brilliancy, brilliant light, burst of light, cheer, cheerfulness, cheeriness, cheery vein, chroma, chromatic color, chromaticity, clear thinking, cleverness, color, color quality, colorfulness, colorimetric quality, cool color, dazzling light, dexterity, docility, educability, effulgence, esprit, eupeptic mien, facility, fair weather, favorableness, flair, flamboyance, flood of light, fortunateness, fulgor, gaiety, geniality, genius, giftedness, gifts, gladness, gladsomeness, glamour, glare, glaring light, gloriousness, glory, good auspices, good cheer, good omen, gorgeousness, happiness, heavenliness, hopefulness, hue, impressionability, intelligence, intensity, keen-wittedness, keenness, lightness, luckiness, luster, malleability, mental alertness, mercurial mind, moldability, motivation, native cleverness, neutral color, nimble mind, nimble-wittedness, nimbleness, nous, optimism, plasticity, pleasantness, pliability, promptitude, promptness, propitiousness, prosperousness, punctuality, pure color, purity, quick parts, quick thinking, quick wit, quick-wittedness, quickness, radiance, radiancy, radiant splendor, ravishingness, readiness, ready wit, receptivity, refulgence, refulgency,