62 entries under clandestine topic. ×
| esoteric(underground, undisclosed) | |
| mysterious(quiet, underground, undisclosed, intriguing) | |
| mystic(underground, undisclosed) | |
| mystical(underground, undisclosed) | |
| obscure(underground, undisclosed) | |
| occult(underground, undisclosed) | |
| out-of-the-way(underground, undisclosed) | |
| recondite(underground, undisclosed) | |
| restricted(underground, undisclosed) | |
| retired(underground, undisclosed) | |
| secluded(underground, undisclosed) | |
| shrouded(underground, undisclosed) | |
| strange(underground, undisclosed) | |
| top-secret(underground, undisclosed) | |
| undisclosed | |
| unenlightened(underground, undisclosed) | |
| unfrequented(underground, undisclosed) | |
| unintelligible(underground, undisclosed) | |
| unknown(underground, undisclosed) | |
| unpublished(underground, undisclosed) |
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| APA | Smart Define. (2016). sly thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sly thesaurus" https://smartdefine.org/sly/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, sly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sly/thesaurus/synonyms>. |
| MLA | Smart Define. "sly thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/sly/thesaurus/synonyms> |