| pitch-black(adjective, dull, dark, gloomy) | |
| pitch-dark(adjective, dull, dark, gloomy) | |
| pitchy(adjective, dull, dark, gloomy) | |
| rayless(adjective, dull, dark, gloomy) | |
| shaded(adjective, dull, dark, gloomy) | |
| stygian(adjective, dull, dark, gloomy) | |
| unlighted(adjective, dull, dark, gloomy) | |
| inky(adjective, dull, dark, gloomy) | |
| bleary(adjective, dull, light, obscure, dark) | |
| cimmerian(adjective, dull, dark, gloomy) | |
| dopey(adjective, dull, simple, slow, stupid) | |
| heavy(adjective, dull, set, solid, dark) | |
| leaden(adjective, dull, soft, obscure, flat) | |
| mushy(dull, obscure, gloomy, gray) | |
| vaporous(dull, obscure, gloomy, gray) |
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| APA | Smart Define. (2016). opaque thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, opaque thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>. |
| MLA | Smart Define. "opaque thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms> |