80 entries under depressing topic. ×

39
dull(adjective, hard, weak, simple, flat)
26
dreary(adjective, dull, blue, sad, unhappy)
24
gloomy(adjective, dull, blue, sad, unhappy)
22
boring(adjective, dull, weak, simple, flat)
20
dark(adjective, calm, dull, quiet, soft)
20
dingy(adjective, dull, soft, obscure, lead)
16
somber(adjective, calm, dull, quiet, soft)
15
cheerless(adjective, dull, blue, sad, unhappy)
13
dismal(adjective, dull, soft, obscure, flat)
12
murky(adjective, dull, soft, obscure, flat)
11
monotonous(adjective, dull, weak, simple, plain)
11
tedious(adjective, dull, weak, simple, plain)
9
dispiriting(adjective, dull, unhappy, dark, gloomy)
9
grim(adjective, dull, blue, sad, unhappy)
8
bleak(adjective, dull, unhappy, dark, gloomy)
8
dim(adjective, dull, weak, soft, blue)
8
disconsolate(adjective, dull, blue, sad, unhappy)
7
blue(adjective, dull, unhappy, dark, black)
7
desolate(adjective, dull, blue, sad, unhappy)
7
sad(adjective, dull, unhappy, dark)
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APASmart Define. (2016). drab thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/drab/thesaurus/synonyms
ChicagoSmart Define. 2016. "drab thesaurus" https://smartdefine.org/drab/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, drab thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/drab/thesaurus/synonyms>.
MLASmart Define. "drab thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/drab/thesaurus/synonyms>