- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
8 entries under adjective topic. ×
| dark(obscure, deep, ambiguous, cryptic) | |
| dense | |
| stoic(apathetic, emotionless, cold-blooded, impassible) | |
| thick | |
| incomprehensible | |
| psionics(extrasensory, supernaturalism) | |
| wonderful(great, excellent, superior, superb) | |
| uncomprehensible |
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| APA | Smart Define. (2015). impenetrable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/impenetrable/thesaurus/related |
| Chicago | Smart Define. 2015. "impenetrable thesaurus" https://smartdefine.org/impenetrable/thesaurus/related (accessed September 26, 2026). |
| Harvard | Smart Define 2015, impenetrable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/impenetrable/thesaurus/related>. |
| MLA | Smart Define. "impenetrable thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/impenetrable/thesaurus/related> |