53 entries under clandestine topic. ×
| stealthy(underground, undisclosed) | |
| sub-rosa(underground, undisclosed) | |
| top-secret(underground, undisclosed) | |
| top secret(expression, underground, undisclosed) | |
| unacknowledged(underground, undisclosed) | |
| under-the-table(underground, undisclosed) | |
| under false pretense(expression, idiom, underground, undisclosed) | |
| under wraps(expression, underground, undisclosed) | |
| underhand(underground, undisclosed) | |
| underhanded(underground, undisclosed) | |
| unenlightened(obscure, unknown, underground, undisclosed) | |
| unfrequented(obscure, unknown, underground, undisclosed) | |
| unpublished(obscure, unknown, underground, undisclosed) |
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| APA | Smart Define. (2015). mystic thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mystic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mystic thesaurus" https://smartdefine.org/mystic/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, mystic thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mystic/thesaurus/synonyms>. |
| MLA | Smart Define. "mystic thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/mystic/thesaurus/synonyms> |