43 entries under clandestine topic. ×

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backstairs
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camouflaged(obscure, unknown, underground, unrevealed)
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cloak-and-dagger(obscure, unknown, underground, unrevealed)
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closet(obscure, unknown, personal, underground)
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conspiratorial(obscure, unknown, underground, unrevealed)
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discreet(personal, underground, confidential, hush-hush)
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dissembled
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dissimulated
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enigmatical(obscure, unknown, underground, unrevealed)
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furtive(obscure, unknown, underground, unrevealed)
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in ambush(expression, underground)
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inside(personal, underground, confidential, hush-hush)
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on the QT(expression, idiom, obscure, unknown)
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sly
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sneak
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sneaky
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stealthy
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sub-rosa
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under-the-table
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under false pretense(expression, idiom, underground)
11 years ago|5.2k views|share |citing 
APASmart Define. (2015). undisclosed thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/undisclosed/thesaurus/synonyms
ChicagoSmart Define. 2015. "undisclosed thesaurus" https://smartdefine.org/undisclosed/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, undisclosed thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/undisclosed/thesaurus/synonyms>.
MLASmart Define. "undisclosed thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/undisclosed/thesaurus/synonyms>