WordNet sense 1 (having a tendency to reverberate or be repeatedly reflected):

ringing, reverberant

WordNet sense 2 (made smooth and bright by or as if by rubbing; reflecting a sheen or glow):

burnished

WordNet sense 3 (perfected or made shiny and smooth):

polished

WordNet sense 4 (characterized by quickness and ease in learning):

smart

WordNet sense 5 (having the capacity for thought and reason especially to a high degree):

intelligent

WordNet sense 6 (enjoying or showing or marked by joy or pleasure or good fortune):

happy

WordNet sense 7 (having or deserving or conferring glory):

glorious

WordNet sense 8 (abounding with sunlight):

sunny, sunshiny

WordNet sense 9 (free from clouds or mist or haze):

clear

WordNet sense 10 (having striking color):

vivid

WordNet sense 11 (having striking color):

colorful, colourful

WordNet sense 12 (not made dim or less bright):

undimmed

WordNet sense 13 (reflecting light):

glistening, glossy, lustrous, sheeny, shining, shiny

WordNet sense 14 (full of light; shining intensely):

brilliant

WordNet sense 15 (shining intensely):

blazing, dazzling, glaring

WordNet sense 16 (radiating or as if radiating light):

effulgent, radiant, refulgent, beamy

WordNet sense 17 (having brief brilliant points or flashes of light):

glittering, scintillating

WordNet sense 18 (softly bright or radiant):

luminous

WordNet sense 19 (characterized by or emitting light):

light

WordNet sense 20 (full or promise):

promising

WordNet sense 21 (auguring favorable circumstances and good luck):

auspicious

WordNet sense 22 (with brightness):

brightly, brilliantly