147 entries under unknown topic. ×
| dark(adjective, secret, hidden, mysterious, unclear) | |
| unclear(adjective, dull, clear, hard, weak) | |
| vague(adjective, dull, clear, weak, rough) | |
| shadowy(adjective, dull, clear, weak, soft) | |
| indefinite(adjective, dull, clear, rough, strange) | |
| indistinct(adjective, dull, quiet, clear, weak) | |
| ambiguous(adjective, cover, clear, rough, dark) | |
| abstruse(noun, adjective, hard, sharp, difficult) | |
| cryptic(adjective, cover, sharp, difficult, dark) | |
| recondite(adjective, dark, sophisticated, mysterious, secret) | |
| mysterious(adjective, hard, solid, dark, strange) | |
| arcane(adjective, dull, hard, difficult, solid) | |
| clouded(adjective, dull, dark, gloomy, uncertain) | |
| deep(adjective, hard, weak, meaning, pale) | |
| nameless(adjective, knowledge, strange, unfamiliar) | |
| inconspicuous(adjective, quiet, see, plain, humble) | |
| doubtful(adjective, rough, dark, uncertain, unreasonable) | |
| occult(noun, verb, adjective, cover, block) | |
| confused(adjective, dull, flat, difficult, dark) | |
| secret(adjective, quiet, dark, superior, strange) |
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| APA | Smart Define. (2016). obscure thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, obscure thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>. |
| MLA | Smart Define. "obscure thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms> |