50 entries under clandestine topic. ×

1
secretive(strange, underground, undisclosed, inexplicable)
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backdoor(obscure, unknown, underground, undisclosed)
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backstairs(underground, undisclosed)
0
classified(obscure, unknown, underground, undisclosed)
0
cloak-and-dagger(obscure, unknown, underground, undisclosed)
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closet(obscure, unknown, underground, undisclosed)
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confidential(underground, undisclosed)
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conspiratorial(obscure, unknown, underground, undisclosed)
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discreet(underground, undisclosed)
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dissembled(underground, undisclosed)
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dissimulated(underground, undisclosed)
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in ambush(expression, underground, undisclosed)
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inside(underground, undisclosed)
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on the QT(expression, idiom, obscure, unknown)
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restricted(underground, undisclosed)
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sly(underground, undisclosed)
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sneak(underground, undisclosed)
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sneaky(underground, undisclosed)
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stealthy(underground, undisclosed)
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sub-rosa(underground, undisclosed)
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APASmart Define. (2015). recondite thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/recondite/thesaurus/synonyms
ChicagoSmart Define. 2015. "recondite thesaurus" https://smartdefine.org/recondite/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, recondite thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/recondite/thesaurus/synonyms>.
MLASmart Define. "recondite thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/recondite/thesaurus/synonyms>