7
obscure(adjective, dull, dark, gloomy, dim)
7
unlighted(adjective, dull, dark, gloomy, dim)
7
unlit(adjective, dull, dark, gloomy, dim)
6
inky(adjective, dull, dark, gloomy, dim)
6
pitch-dark(adjective, dull, dark, gloomy, dim)
6
rainy(adjective, dark)
5
cloud-covered
5
darksome(adjective, sorrow, depress, sadness, emotion)
5
foggy(adjective, dull, dark, gloomy, dim)
5
glum(adjective, sorrow, depress, sadness, emotion)
5
grim(adjective, sorrow, depress, sadness, emotion)
5
lightless(adjective, dull, dark, gloomy, dim)
5
misty(adjective, dull, dark, gloomy, dim)
5
nebulous(adjective, dull, dark, gloomy, dim)
5
opaque(adjective, dull, dark, gloomy, dim)
5
pitchy(adjective, dull, dark, gloomy, dim)
5
sullen(adjective, sorrow, depress, sadness, emotion)
4
Stygian(adjective, dull, dark, gloomy, dim)
4
blurred(gloomy, gray, overcast)
4
caliginous(adjective, dull, dark, gloomy, dim)
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APASmart Define. (2016). sunless thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sunless/thesaurus/synonyms
ChicagoSmart Define. 2016. "sunless thesaurus" https://smartdefine.org/sunless/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, sunless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sunless/thesaurus/synonyms>.
MLASmart Define. "sunless thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/sunless/thesaurus/synonyms>