- Definitions|1
- Thesaurus|57
- Abbreviations|0
17 entries under adjective topic. ×
| inexplicable | |
| arcane | |
| cryptic | |
| deep | |
| fathomless | |
| impenetrable | |
| incomprehensible | |
| inconceivable | |
| inscrutable | |
| intangible | |
| mystic | |
| mystical | |
| obscure | |
| recondite | |
| secret | |
| unfathomable | |
| unsearchable |
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| APA | Smart Define. (2013). investigable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/investigable/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "investigable thesaurus" https://smartdefine.org/investigable/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2013, investigable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/investigable/thesaurus/synonyms>. |
| MLA | Smart Define. "investigable thesaurus" 19 May 2013. Web. 28 September 2026. <https://smartdefine.org/investigable/thesaurus/synonyms> |