103 entries under vague topic. ×
| incomprehensible(adjective, difficult, solid, dark, heavy) | |
| misty(adjective, dull, clear, dark, gloomy) | |
| concealed(adjective, quiet, cover, difficult, plain) | |
| puzzling(adjective, dark, strange, uncertain, complex) | |
| unknown(adjective, knowledge, rough, dark, superior) | |
| doubtful(adjective, rough, dark, uncertain, unreasonable) | |
| muddy(verb, adjective, dull, soft, flat) | |
| nebulous(adjective, dull, clear, rough, dark) | |
| occult(noun, verb, adjective, cover, block) | |
| confused(adjective, dull, flat, difficult, dark) | |
| shady(adjective, dull, dark, gloomy, uncertain) | |
| unfathomable(adjective, hard, difficult, solid, dark) | |
| indeterminate(adjective, rough, uncertain, doubtful, unsettled) | |
| indistinguishable(adjective, unknown, unclear, hazy) | |
| unintelligible(adjective, hard, rough, difficult, solid) | |
| ill-defined(adjective, weak, rough, dark, uncertain) | |
| tenebrous(adjective, dull, rough, difficult, dark) | |
| equivocal(adjective, cover, clear, rough, difficult) | |
| intricate(adjective, hard, difficult, heavy, complex) | |
| perplexing(adjective, hard, rough, difficult, dark) |
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| APA | Smart Define. (2016). obscure thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, obscure thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>. |
| MLA | Smart Define. "obscure thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms> |