198 entries under adjective topic. ×

4
obscured(dull, dark, gloomy, faint)
4
recondite
4
shapeless
4
sooty(dull, soft, obscure, flat)
4
stolid(dull, insensitive, simple-minded, dull-witted)
3
dumb(dull, silly, foolish, stupid)
3
amphibological
3
aphotic(dull, dark, gloomy, dim)
3
caliginous(dull, dark, gloomy, dim)
3
close(set, solid, heavy, deep)
3
concealed
3
crepuscular(dull, obscure, dark, gloomy)
3
dingy(dull, soft, obscure, flat)
3
dun(dull, soft, obscure, flat)
3
grimy(dull, soft, obscure, flat)
3
gross
3
latent(secret, sneaky, stealthy, unintelligibility)
3
lightless(dull, dark, gloomy, dim)
3
overcast(dull, soft, obscure, flat)
3
pale(dull, dark, gloomy, faint)
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APASmart Define. (2016). opaque thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms
ChicagoSmart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, opaque thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>.
MLASmart Define. "opaque thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms>