Akademik

brightness
noun
1. the location of a visual perception along a continuum from black to white (Freq. 11)
Ant: ↑dullness
Derivationally related forms: ↑bright
Hypernyms: ↑light, ↑lightness
Hyponyms:
glare, ↑blaze, ↑brilliance, ↑dazzle, ↑glitter, ↑glister, ↑glisten, ↑scintillation, ↑sparkle, ↑flash, ↑glint, ↑opalescence, ↑iridescence, ↑radiance, ↑radiancy, ↑shine, ↑effulgence, ↑refulgence, ↑refulgency, ↑luster, ↑lustre, ↑brilliancy, ↑splendor, ↑splendour
2. intelligence as manifested in being quick and witty
Syn: ↑cleverness, ↑smartness
Derivationally related forms: ↑smart (for: ↑smartness), ↑clever (for: ↑cleverness), ↑bright
Hypernyms: ↑intelligence
3. the quality of being luminous; emitting or reflecting light
-

its luminosity is measured relative to that of our sun

Syn: ↑luminosity, ↑brightness level, ↑luminance, ↑luminousness, ↑light
Derivationally related forms: ↑light (for: ↑light), ↑bright (for: ↑luminousness), ↑bright, ↑luminous (for: ↑luminosity)
Hypernyms: ↑physical property
Hyponyms: ↑illuminance, ↑illumination, ↑incandescence, ↑luminescence, ↑glow
Attrubites: ↑bright, ↑dull

Useful english dictionary. 2012.