36 entries under verb topic. ×

9
darken(worsen, lighten, unlit, shaded)
4
depress(worsen, darken)
4
dim(clear, obscure, darken)
4
dull(adjective, worsen, darken)
3
fade(rise, extend, grow, lose)
3
upset(worsen, darken)
2
blacken
2
discolor(clean, fading, hue)
2
overcast
2
sadden
1
dampen
1
deepen(worsen, darken)
1
dishearten(worsen, darken)
1
pale(raise, extend, weakened, lighter)
1
pall(fast, bore, tire)
1
tarnish(fix, clean)
1
tone down(expression, phrasal verb, upset)
0
bring down(expression, phrasal verb, worsen, darken)
0
complicate(worsen, darken)
0
confuse
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APASmart Define. (2015). brighten thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/brighten/thesaurus/antonyms
ChicagoSmart Define. 2015. "brighten thesaurus" https://smartdefine.org/brighten/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, brighten thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/brighten/thesaurus/antonyms>.
MLASmart Define. "brighten thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/brighten/thesaurus/antonyms>