80 entries under depressing topic. ×

6
wearisome(adjective, dull, stupid, boring, routine)
5
bad(adjective, dull, sad, dark, common)
5
cloudy(adjective, dull, soft, obscure, flat)
5
dusky(adjective, dull, soft, obscure, lead)
5
overcast(adjective, dull, soft, obscure, flat)
5
shadowy(adjective, dull, soft, obscure, flat)
5
tenebrous(adjective, dull, dark, gloomy, miserable)
5
unexciting(adjective, dull, stupid, boring, routine)
4
melancholy(adjective, dull, blue, sad, unhappy)
4
mournful(adjective, dull, blue, sad, unhappy)
3
caliginous(adjective, dull, dark, gloomy, dim)
3
clouded(adjective, dull, lead, dark, gloomy)
3
depressed(adjective, dull, blue, sad, unhappy)
3
despondent(adjective, dull, blue, sad, unhappy)
3
irksome(adjective, dull, simple, clean, plain)
3
obscure(adjective, dull, soft, flat, dark)
3
pedestrian(adjective, dull, simple, excite, clean)
3
unlit(adjective, dull, soft, obscure, flat)
3
woebegone(adjective, dull, blue, sad, unhappy)
2
banal(adjective, dull, hard, weak, simple)
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APASmart Define. (2016). drab thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/drab/thesaurus/synonyms
ChicagoSmart Define. 2016. "drab thesaurus" https://smartdefine.org/drab/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, drab thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/drab/thesaurus/synonyms>.
MLASmart Define. "drab thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/drab/thesaurus/synonyms>