0
nonplus
0
obfuscate
0
obscure
0
obtuse
0
ominous
0
opaque
0
oppress
0
overshadow
0
overwhelm
0
pain
0
perplex
0
perturb
0
pervert
0
push
0
put to sleep(expression, idiom, advance, raise, extend)
0
puzzle
0
quench
0
questionable
0
retard
0
rise above(expression, clear)
11 years ago|1.7k views|share |citing 
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>