80 entries under gloomy topic. ×

1
muddy(gray, overcast)
1
mushy(gray, overcast)
1
nebulous(gray, overcast)
1
nontranslucent(gray, overcast)
1
nontransparent(gray, overcast)
1
not clear(expression, gray, overcast)
1
nubilous(gray, overcast)
1
opaque(gray, overcast)
1
perversive(low, melancholy, miserable, depressed)
1
singing the blues(expression, idiom, low, depressed)
1
taciturn(low, melancholy, miserable, depressed)
1
tenebrific(adjective, upset, brooding)
1
troubled(adjective, low, sad, miserable)
1
vaporous(gray, overcast)
0
bummed out(expression, down)
0
dreadful(adjective, dark, unpleasant, horrible)
0
hazy(gray, overcast)
0
hopeless(adjective, melancholy, negative, doubtful)
0
in bad mood(expression, idiom, depressed, pessimistic)
0
negative(adjective, down, doubtful, cynical)
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APASmart Define. (2016). sullen thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/sullen/thesaurus/synonyms
ChicagoSmart Define. 2016. "sullen thesaurus" https://smartdefine.org/sullen/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, sullen thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/sullen/thesaurus/synonyms>.
MLASmart Define. "sullen thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/sullen/thesaurus/synonyms>