88 entries under dull topic. ×
| gloomy(adjective, flat, dark, dirty) | |
| tenebrous(adjective, hard, obscure, difficult) | |
| dusk(noun, adjective, dark, gloomy) | |
| faint(adjective, obscure, dark, gloomy) | |
| fuzzy(adjective, obscure, flat, dark) | |
| indefinite(obscure, gloomy, uncertain, dim) | |
| shady(adjective, dark, gloomy, dim) | |
| somber(adjective, soft, obscure, flat) | |
| sunless(adjective, dark, gloomy, dim) | |
| unintelligent(adjective, silly, foolish, stupid) | |
| drab(adjective, soft, obscure, flat) | |
| darkened(adjective, dark, gloomy, dim) | |
| obscured(adjective, dark, gloomy, faint) | |
| sooty(adjective, soft, obscure, flat) | |
| stolid(adjective, insensitive, simple-minded, dull-witted) | |
| dumb(adjective, silly, foolish, stupid) | |
| aphotic(adjective, dark, gloomy, dim) | |
| caliginous(adjective, dark, gloomy, dim) | |
| crepuscular(adjective, obscure, dark, gloomy) | |
| dingy(adjective, soft, obscure, flat) |
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| APA | Smart Define. (2016). opaque thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, opaque thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>. |
| MLA | Smart Define. "opaque thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms> |