100 entries under gloomy topic. ×

25
dull(adjective, unhappy, dirty, miserable)
25
sunless(adjective, characteristic, shade, color, feature)
25
unlit(adjective, characteristic, shade, color, feature)
22
drab(adjective, dull, bay, buff, feature)
22
swarthy(adjective, feature, appearance, pitch, inky)
22
threatening(adjective, feature, character, description)
21
sullen(adjective, dull, black, character)
21
funereal(adjective, depressing, dull, black, character)
21
indistinct(adjective, characteristic, obscure, shade, color)
20
morose(adjective, character, behaviour, personality)
20
glum(adjective, character, behaviour, personality, sadness)
20
inky(adjective, characteristic, color, pitch, clouded)
20
pitch-black(adjective, characteristic, color, black, feature)
19
joyless(adjective, sad, depressing, feature, dull)
19
menacing(adjective, feature, description, attribute, aspect)
19
mournful(adjective, sad, sorrow, woe)
18
glowering(adjective, character, behaviour, personality, upset)
18
atrocious(adjective, description, feature, characteristic, attribute)
18
sinister(adjective, evil, obscure, rough, nasty)
17
clouded(adjective, dull, obscure, lack)
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APASmart Define. (2016). dark thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/dark/thesaurus/synonyms
ChicagoSmart Define. 2016. "dark thesaurus" https://smartdefine.org/dark/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, dark thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/dark/thesaurus/synonyms>.
MLASmart Define. "dark thesaurus" 3 April 2016. Web. 27 September 2026. <https://smartdefine.org/dark/thesaurus/synonyms>