Effulgent
Part of speech: adjective
Definition: shining, resplendent, with radiant splendor
Bright
Part of speech: adjective
Definition: Visually dazzling; luminous, lucent, clear, radiant; not dark.Intelligent, brilliant.Vivid, colourful, brilliant.Happy.
Part of speech: noun
Definition: An artists brush used in oil and acrylic painting with a long ferrule and a flat, somewhat tapering bristle head.A neologism intended as a positive-sounding umbrella term to describe various kinds of non-religious and non-superstitious people. (There is a Wikipedia article on this usage.)
Example sentence: A man who correctly guesses a woman's age may be smart, but he's not very bright.