- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
62 entries under supernatural topic. ×
| unfathomable(adjective, hard, knowledge, obscure, difficult) | |
| arcane(adjective, obscure, solid, strange, doubtful) | |
| unintelligible(adjective, knowledge, obscure, solid, dark) | |
| mystic(adjective, obscure, solid, dark, superior) | |
| unknowable(adjective, obscure, solid, dark, superior) | |
| unaccountable(adjective, obscure, solid, strange, doubtful) | |
| hidden(adjective, obscure, difficult, solid, dark) | |
| cabalistic(adjective, obscure, solid, strange, odd) | |
| esoteric(adjective, obscure, difficult, strange, deep) | |
| enigmatical(adjective, solid, strange, dense) | |
| invisible(obscure, dark, superior, mysterious) | |
| numinous(obscure, dark, superior, mysterious) | |
| secret(adjective, obscure, dark, superior, strange) | |
| unknown(obscure, dark, superior, strange, mysterious) | |
| abnormal(obscure, dark, superior, mysterious) | |
| anagogic(spiritual, mystical) | |
| celestial(obscure, dark, superior, mysterious) | |
| fabulous(obscure, dark, superior, mysterious) | |
| fairy(obscure, dark, superior, mysterious) | |
| ghostly(obscure, dark, superior, mysterious) |
For more, visit
Impenetrable on
Power Thesaurus
| APA | Smart Define. (2015). impenetrable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/impenetrable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impenetrable thesaurus" https://smartdefine.org/impenetrable/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, impenetrable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/impenetrable/thesaurus/synonyms>. |
| MLA | Smart Define. "impenetrable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/impenetrable/thesaurus/synonyms> |