299 entries under dull topic. ×

26
dreary(adjective, blue, sad, unhappy)
24
gloomy(adjective, blue, sad, unhappy)
22
boring(adjective, weak, simple, flat)
20
dark(adjective, calm, quiet, soft)
20
dingy(adjective, soft, obscure, lead)
18
gray(adjective, dark, gloomy, dirty)
18
grey(adjective, lead, leaden, mousy)
16
somber(adjective, calm, quiet, soft)
16
colourless
15
cheerless(adjective, blue, sad, unhappy)
13
dismal(adjective, soft, obscure, flat)
13
flat(adjective, hard, simple, soft)
12
murky(adjective, soft, obscure, flat)
11
monotonous(adjective, weak, simple, plain)
11
sombre(adjective, flat, boring, lifeless)
11
prosaic(adjective, weak, simple, flat)
11
tedious(adjective, weak, simple, plain)
10
arid(adjective, excite, stupid, boring)
10
depressing(adjective, blue, sad, unhappy)
9
dun(adjective, soft, obscure, flat)
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APASmart Define. (2016). drab thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/drab/thesaurus/synonyms
ChicagoSmart Define. 2016. "drab thesaurus" https://smartdefine.org/drab/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, drab thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/drab/thesaurus/synonyms>.
MLASmart Define. "drab thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/drab/thesaurus/synonyms>