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Definitions

brightness

[brahyt-nis] / ˈbraɪt nɪs /
NOUN
shine
Synonyms
STRONGEST
brilliance illumination luster
STRONG
glaze gloss light luminosity shine
Antonyms
STRONGEST
darkness
STRONG
dullness
WEAK
stupidity
NOUN
intelligence
Synonyms
STRONGEST
brilliance
STRONG
IQ acumen aptitude competence smarts
Antonyms
STRONG
inability ineptness stupidity
WEAK
darkness dullness

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.