61 entries under clandestine topic. ×
| backdoor(obscure, deep, unknown, underground) | |
| backstairs(underground, undisclosed) | |
| camouflaged(obscure, unknown, underground, undisclosed) | |
| classified(obscure, unknown, underground, undisclosed) | |
| cloak-and-dagger(obscure, unknown, underground, undisclosed) | |
| close(obscure, unknown, underground, undisclosed) | |
| closet(obscure, unknown, underground, undisclosed) | |
| confidential(underground, undisclosed) | |
| conspiratorial(obscure, unknown, underground, undisclosed) | |
| covered(obscure, unknown, underground, undisclosed) | |
| covert(cover, obscure, dark, equivocal) | |
| disguised(obscure, unknown, underground, undisclosed) | |
| dissembled(underground, undisclosed) | |
| dissimulated(underground, undisclosed) | |
| furtive(obscure, unknown, underground, undisclosed) | |
| in ambush(expression, underground, undisclosed) | |
| incognito(underground, undisclosed) | |
| inside(underground, undisclosed) | |
| on the QT(expression, idiom, obscure, unknown) | |
| private(obscure, unknown, underground, undisclosed) |
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| APA | Smart Define. (2016). ambiguous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ambiguous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ambiguous thesaurus" https://smartdefine.org/ambiguous/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, ambiguous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ambiguous/thesaurus/synonyms>. |
| MLA | Smart Define. "ambiguous thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/ambiguous/thesaurus/synonyms> |