- Definitions|2
- Thesaurus|168
- Abbreviations|0
14 entries under closure topic. ×
| untrodden | |
| impenetrable | |
| impermeable | |
| impervious | |
| imporous | |
| unpierced | |
| caecal | |
| closable | |
| impassable | |
| invious | |
| pathless | |
| unpassable | |
| untrod | |
| wayless |
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| APA | Smart Define. (2015). imperforate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/imperforate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "imperforate thesaurus" https://smartdefine.org/imperforate/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, imperforate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/imperforate/thesaurus/synonyms>. |
| MLA | Smart Define. "imperforate thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/imperforate/thesaurus/synonyms> |