9 entries under sub-rosa topic. ×
| classified(noun, adjective, sensitive, secret, restricted) | |
| secret(adjective, sensitive, private, hidden, clandestine) | |
| under-the-table(adjective, sensitive, clandestine, underground, undisclosed) | |
| buttoned up(expression, adjective, sensitive) | |
| hidden away(expression, adjective, sensitive) | |
| kept concealed(expression, adjective, sensitive) | |
| privileged(adjective, sensitive, private, confidential) | |
| sensitive(adjective, secret) | |
| with a lid on(expression, adjective, idiom, sensitive) |
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| APA | Smart Define. (2015). top secret thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/top_secret/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "top secret thesaurus" https://smartdefine.org/top_secret/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, top secret thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/top_secret/thesaurus/synonyms>. |
| MLA | Smart Define. "top secret thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/top_secret/thesaurus/synonyms> |