3
opaque
3
pastel(adjective, color, vivid)
3
shady(adjective, dark, covered)
3
slow
3
sorrowful
3
squally
3
stormy
3
subdued
3
tenebrous
3
thick
3
thickheaded
3
unlit
3
unpromising
3
unsatisfied
3
vacuous
2
matt
2
absurd
2
airheaded
2
asinine
2
average
10 years ago|9.8k views|share |citing 
APASmart Define. (2016). bright thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/bright/thesaurus/antonyms
ChicagoSmart Define. 2016. "bright thesaurus" https://smartdefine.org/bright/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, bright thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/bright/thesaurus/antonyms>.
MLASmart Define. "bright thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/bright/thesaurus/antonyms>