Synonyms|649Antonyms|194|Broader|12Narrower|0Related|467
0
darkish
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daub
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daze
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deaden(advance, raise, extend)
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decay(raise, extend, flourish)
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decelerate
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defile
0
deform
0
deject
0
depressing
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despair
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despond
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die away(expression, fight, reach)
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die down(expression, reach)
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die out(expression, reach)
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dirty
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discourage(verb, worsen, darken)
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disfigure
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disguise
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dismal
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APASmart Define. (2015). brighten thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/brighten/thesaurus/antonyms
ChicagoSmart Define. 2015. "brighten thesaurus" https://smartdefine.org/brighten/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, brighten thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/brighten/thesaurus/antonyms>.
MLASmart Define. "brighten thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/brighten/thesaurus/antonyms>