a. яскравий, світлий, сприятливий, райдужний, прозорий, чистий, чудовий, здібний, веселий, тямущий, ясний
adv. блискуче, яскраво

emitting or reflecting light readily or in large amounts: silky, luminance, fulgid, self-luminous, scintillant, refulgent, sheeny, dazzling, aglitter, glary, gleaming, beadlike, ardent, luminous, shining, agleam, glimmery, luminousness, beaming, buttonlike, glistering, coruscant, lambent, sparkly, silvery, fulgent, scintillating, silvern, pearlescent, buttony, blinding, lurid, silken, slick, beamy, noctilucent, sleek, shimmery, opaline, silklike, twinkling, effulgent, opalescent, lustrous, iridescent, glistening, brightness level, nitid, silver, aglow, glittery, lucent, bright as a new penny, glaring, brightness, beady, luminosity, radiant, blazing, nacreous, brilliant, satiny, glossy, light, glinting, shiny, glittering
having striking color: brilliant, colourful, vivid, colorful
characterized by quickness and ease in learning: intelligent, smart
having lots of light either natural or artificial: light
splendid: glorious
with brightness: brightly, brilliantly
made smooth and bright by or as if by rubbing; reflecting a sheen or glow: burnished, polished, lustrous, shiny, shining