90 entries under obscure topic. ×
| difficult(adjective, uncertain, unclear, equivocal) | |
| fearful(adjective, impalpable, inexpressible, indescribable) | |
| ghostly | |
| hard(adjective, difficult, unclear) | |
| imperceptive(adjective, difficult, uncertain, unclear) | |
| in question(anxious, worried, troubled, concerned) | |
| intricate(adjective, heavy, doubtful, unclear) | |
| involved(adjective, heavy, doubtful, unclear) | |
| purblind(adjective, difficult, uncertain, unclear) | |
| umbral |
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| APA | Smart Define. (2016). vague thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/vague/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "vague thesaurus" https://smartdefine.org/vague/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, vague thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/vague/thesaurus/synonyms>. |
| MLA | Smart Define. "vague thesaurus" 29 February 2016. Web. 29 September 2026. <https://smartdefine.org/vague/thesaurus/synonyms> |