- Definitions|2
- Thesaurus|246
- Abbreviations|0
24 entries under mysterious topic. ×
| oracular(adjective, dark, uncertain, prediction) | |
| cryptic(adjective, dark, uncertain, unfathomable) | |
| esoteric(adjective, obscure) | |
| inscrutable(adjective, solid, dark, uncertain) | |
| occult(adjective, dark, uncertain, psychic) | |
| incomprehensible(adjective, solid, dark, uncertain) | |
| recondite(dark, uncertain) | |
| Delphian(adjective, dark, uncertain, prophetic) | |
| inexplicable(adjective, solid, dark, uncertain) | |
| obscure(solid, dark, uncertain, dense) | |
| perplexing(dark, uncertain, unfathomable, impenetrable) | |
| puzzling(dark, uncertain, unfathomable, impenetrable) | |
| secret(dark, uncertain) | |
| unfathomable(solid, dark, uncertain, dense) | |
| unintelligible(solid, dark, uncertain, dense) | |
| ambiguous(dark, uncertain) | |
| doubtful(dark, uncertain) | |
| equivocal(dark, uncertain) | |
| indecipherable(dark, uncertain) | |
| sphinxlike(dark, uncertain) |
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| APA | Smart Define. (2015). sibylline thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sibylline/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sibylline thesaurus" https://smartdefine.org/sibylline/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, sibylline thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sibylline/thesaurus/synonyms>. |
| MLA | Smart Define. "sibylline thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/sibylline/thesaurus/synonyms> |