- Definitions|2
- Thesaurus|136
- Abbreviations|0
| gulf(noun, low, nadir, embrasure, carrel) | |
| guts | |
| innermost | |
| innermost reaches | |
| intestines | |
| isolation(quiet, retreat, space, secrecy, solitude) | |
| lap | |
| low | |
| marrow | |
| pith | |
| privateness(quiet, retreat, space, secrecy, solitude) | |
| quiet(retreat, space, secrecy, solitude) | |
| recesses | |
| refuge(noun, hole, hideaway, den, lair) | |
| retirement(quiet, retreat, space, secrecy, solitude) | |
| safe place(noun, expression, hole, hideaway, den) | |
| seclusion(quiet, retreat, space, solitude) | |
| secrecy(space, solitude) | |
| secret places | |
| separateness(quiet, retreat, space, secrecy, solitude) |
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| APA | Smart Define. (2015). penetralia thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/penetralia/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "penetralia thesaurus" https://smartdefine.org/penetralia/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, penetralia thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/penetralia/thesaurus/synonyms>. |
| MLA | Smart Define. "penetralia thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/penetralia/thesaurus/synonyms> |