Effulgence (noun)
effulgence [ih-fuhl-juh ns, ih-foo l-]

noun
1. a brilliant radiance; a shining forth.

Synonyms
brightness, brilliancy, candor, dazzle, brilliance, illumination, lambency, lightness, luminance, luminosity, luminousness, luster (or lustre), lustrousness, radiance, refulgence, splendor

Antonyms
blackness, dark, darkness, dullness (also dulness), duskiness

Origin: Late Latin effulgentia, from Latin effulgent-, effulgens, present participle of effulgere to shine forth, from ex- + fulgere to shine — more at fulgent First Known Use: 1667

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