476 entries under adjective topic. ×

6
umbrageous(cool, dark, shady, indefinite)
6
undefined(weak, obscure, dark, doubtful)
6
unlit(dull, soft, obscure, flat)
5
achromatic(shabby, monotonous, distressed, neutral)
5
amorphous(unclear, indistinct, indistinguishable)
5
backward
5
boorish(dull, slow, stupid, intelligent)
5
brain-dead
5
darkened(dull, dark, gloomy, black)
5
darkish(dull, obscure, dark, gloomy)
5
darksome
5
dull-witted
5
grey
5
grimy(dull, soft, obscure, flat)
5
inky(dull, obscure, dark, gloomy)
5
low(dull, quiet, weak, simple)
5
lurid(dull, light, soft, poor)
5
monotonous(dull, weak, dark, heavy)
5
sad(blue, depression, woe)
5
sooty(dull, soft, obscure, flat)
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APASmart Define. (2016). dim thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/dim/thesaurus/synonyms
ChicagoSmart Define. 2016. "dim thesaurus" https://smartdefine.org/dim/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, dim thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/dim/thesaurus/synonyms>.
MLASmart Define. "dim thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/dim/thesaurus/synonyms>