13 entries under furtive topic. ×
| close(inside, clandestine, underground, undisclosed) | |
| cryptic(close, inside, clandestine, underground, undisclosed) | |
| backdoor(adjective, close, sensitive, inside, clandestine) | |
| backstairs(adjective, close, sensitive, inside, clandestine) | |
| camouflaged(close, clandestine, underground, undisclosed) | |
| discreet(close, inside, clandestine, underground, undisclosed) | |
| dissembled(close, clandestine, underground, undisclosed) | |
| dissimulated(close, inside, clandestine, underground, undisclosed) | |
| incognito(close, clandestine, underground, undisclosed) | |
| inside(close, private, clandestine, underground, undisclosed) | |
| sneak(close, inside, clandestine, underground, undisclosed) | |
| sub-rosa(adjective, close, sensitive, clandestine, underground) | |
| unacknowledged(adjective, close, sensitive, inside, clandestine) |
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| APA | Smart Define. (2015). top secret thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/top_secret/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "top secret thesaurus" https://smartdefine.org/top_secret/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, top secret thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/top_secret/thesaurus/synonyms>. |
| MLA | Smart Define. "top secret thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/top_secret/thesaurus/synonyms> |