Synonyms|526Antonyms|248|Broader|6Narrower|2Related|903
20
dim(adjective, light, dark, lively)
19
dark(adjective, clear, light, clean, lack)
14
gloomy(adjective, clear, light, dark)
11
dull(adjective, smart, active, fast, drab)
7
murky(adjective, good, clear, obscure, gloomy)
7
vague
4
black
3
unlit
3
dusky
3
obscure
3
somber(adjective, light, bright)
3
opaque
3
shadowy
2
cloudy(adjective, good, clear, dark)
2
black out
2
clouded
1
dismal(adjective, clear, light)
1
indistinct
1
mysterious
1
unclear
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APASmart Define. (2016). luminous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/luminous/thesaurus/antonyms
ChicagoSmart Define. 2016. "luminous thesaurus" https://smartdefine.org/luminous/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, luminous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/luminous/thesaurus/antonyms>.
MLASmart Define. "luminous thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/luminous/thesaurus/antonyms>