- Definitions|2
- Thesaurus|931
- Abbreviations|0
37 entries under dense topic. ×
| impenetrable(adjective, solid, unaffected, unyielding) | |
| impervious(adjective, solid, unreasonable, useless, absurd) | |
| impermeable(adjective, solid, unaffected, unyielding) | |
| thick(adjective, solid) | |
| obscure(adjective, solid) | |
| compact(adjective, solid) | |
| incomprehensible(adjective, solid) | |
| murky(adjective, solid) | |
| mysterious(adjective, solid) | |
| bulletproof(adjective, solid, untouchable, invincible) | |
| hard(adjective, solid) | |
| hermetic(adjective, solid, unaffected, unyielding) | |
| inviolable(adjective, solid) | |
| Delphic(adjective, solid) | |
| arcane(adjective, solid) | |
| baffling(adjective, solid) | |
| cabalistic(adjective, solid) | |
| close(adjective, solid) | |
| enigmatic(adjective, solid) | |
| enigmatical(adjective, solid) |
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| APA | Smart Define. (2015). impassable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impassable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impassable thesaurus" https://smartdefine.org/impassable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, impassable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impassable/thesaurus/synonyms>. |
| MLA | Smart Define. "impassable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/impassable/thesaurus/synonyms> |