68 entries under undisclosed topic. ×
| under wraps(expression, secret, clandestine, underground) | |
| unrevealed(clandestine, underground) | |
| backstairs(clandestine, underground, discreet) | |
| dissembled(clandestine, underground, discreet) | |
| dissimulated(clandestine, underground, discreet) | |
| in ambush(expression, clandestine, underground, discreet) | |
| obscure(clandestine, underground, provisional, restrictive) | |
| secretive(clandestine, underground, discreet) | |
| sneak(clandestine, underground, discreet) | |
| sub-rosa(secret, clandestine, underground, top-secret) | |
| under-the-table(secret, clandestine, underground, top-secret) | |
| abstruse(modern, advanced, clandestine, underground) | |
| ambiguous(adjective, clandestine, underground, surreptitious) | |
| backdoor(clandestine, underground) | |
| camouflaged(clandestine, underground) | |
| cloak-and-dagger(secret, clandestine, underground, top-secret) | |
| closet(secret, clandestine, underground, confidential) | |
| clouded(clandestine, underground) | |
| conspiratorial(clandestine, underground) | |
| covered(clandestine, underground) |
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| APA | Smart Define. (2016). restricted thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/restricted/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "restricted thesaurus" https://smartdefine.org/restricted/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, restricted thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/restricted/thesaurus/synonyms>. |
| MLA | Smart Define. "restricted thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/restricted/thesaurus/synonyms> |