- Definitions|1
- Thesaurus|65
- Abbreviations|0
9 entries under ambiguous topic. ×
| unknowable(adjective, difficult, mysterious, secret, supernatural) | |
| deadpan(unfathomable, enigmatic, sphinx-like) | |
| difficult(adjective, hidden, unfathomable, incomprehensible) | |
| mysterious blank(expression, adjective, difficult, hidden) | |
| poker-faced(adjective, difficult, hidden, unfathomable) | |
| sphinxlike(adjective, difficult, hidden, unfathomable) | |
| undiscoverable(adjective, difficult, hidden, unfathomable) | |
| unexplainable(adjective, difficult, hidden, unfathomable) | |
| unreadable(unfathomable, enigmatic, sphinx-like) |
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| APA | Smart Define. (2011). mysterial thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/mysterial/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "mysterial thesaurus" https://smartdefine.org/mysterial/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2011, mysterial thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/mysterial/thesaurus/synonyms>. |
| MLA | Smart Define. "mysterial thesaurus" 23 May 2011. Web. 28 September 2026. <https://smartdefine.org/mysterial/thesaurus/synonyms> |