120 entries under dull topic. ×

11
heavy(adjective, upset, bad, severe)
11
morbid(verb, adjective, sad, unhappy)
10
horrible(verb, adjective, gloomy, wretched)
10
inauspicious(verb, adjective, gloomy, miserable)
10
oppressive(adjective, severe, obscure, sad)
9
tedious(verb, adjective, flat, gloomy)
7
dire(adjective, dark, awful, terrible)
7
boring(verb, adjective, flat, gloomy)
7
horrid(verb, adjective, awful, gloomy)
7
saddening(adjective, sad, unhappy, dark)
6
clouded(adjective, dark, gloomy, miserable)
6
depressive(adjective, pain, dark, gloomy)
6
disagreeable(verb, adjective, dark, gloomy)
6
frowning(verb, adjective, gloomy, miserable)
6
leaden(soft, flat, dark, cold)
6
monotonous(verb, adjective, flat, gloomy)
6
shady(adjective, obscure, dark, gloomy)
6
sober(adjective, soft, flat, dark)
5
flat(adjective, soft, obscure, dark)
5
hurting(adjective, blue, sad, unhappy)
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APASmart Define. (2016). dismal thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/dismal/thesaurus/synonyms
ChicagoSmart Define. 2016. "dismal thesaurus" https://smartdefine.org/dismal/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, dismal thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/dismal/thesaurus/synonyms>.
MLASmart Define. "dismal thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/dismal/thesaurus/synonyms>