102 entries under flat topic. ×

6
faded(adjective, dull, hard, soft, obscure)
6
indistinct(adjective, dull, soft, obscure)
6
mousy(adjective, dull, soft, obscure, lead)
5
cloudy(adjective, dull, soft, obscure)
5
dusky(adjective, dull, soft, obscure, lead)
5
grimy(adjective, dull, soft, obscure)
5
lurid(adjective, dull, dark, gloomy)
5
lusterless(adjective, dull, simple, excite)
5
opaque(adjective, dull, soft, obscure)
5
overcast(adjective, dull, soft, obscure)
5
shadowy(adjective, dull, soft, obscure)
4
blah(adjective, dull, weak, simple)
4
leaden(adjective, dull, soft, obscure, lead)
4
pale(adjective, dull, gray, neutral)
4
subfusc(adjective, soft, obscure, dark)
4
tiring(adjective, dull, stupid, boring)
3
achromatic(adjective, dull, pale, white)
3
ashen(adjective, dull, soft, obscure, lead)
3
ho-hum(adjective, dull, simple, clean)
3
obscure(adjective, dull, soft, dark)
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APASmart Define. (2016). drab thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/drab/thesaurus/synonyms
ChicagoSmart Define. 2016. "drab thesaurus" https://smartdefine.org/drab/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, drab thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/drab/thesaurus/synonyms>.
MLASmart Define. "drab thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/drab/thesaurus/synonyms>