- Definitions|2
- Thesaurus|931
- Abbreviations|0
8 entries under closed topic. ×
| impenetrable(adjective, solid, dense, unaffected, unyielding) | |
| insurmountable(adjective, do, unreasonable, useless, remote) | |
| pathless(adjective, closure) | |
| obstructed(adjective, dark, inaccessible) | |
| blockaded | |
| forbidden | |
| untrodden(adjective, closure) | |
| trackless |
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| APA | Smart Define. (2015). impassable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/impassable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impassable thesaurus" https://smartdefine.org/impassable/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, impassable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/impassable/thesaurus/synonyms>. |
| MLA | Smart Define. "impassable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/impassable/thesaurus/synonyms> |