Synonyms|115Antonyms|3|Broader|0Narrower|0Related|33

70 entries under underground topic. ×

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mystical(obscure, unknown, clandestine, undisclosed)
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obscure(unknown, clandestine, undisclosed, unrevealed)
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occult(obscure, unknown, clandestine, undisclosed)
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on the QT(expression, idiom, obscure, unknown, clandestine)
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out-of-the-way(obscure, unknown, clandestine, undisclosed)
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recondite(obscure, unknown, clandestine, undisclosed)
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restricted(secret, clandestine, undisclosed, top-secret)
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reticent(obscure, unknown, clandestine, undisclosed)
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retired(obscure, unknown, clandestine, undisclosed)
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secluded(obscure, unknown, clandestine, undisclosed)
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secretive(clandestine, undisclosed)
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shrouded(obscure, unknown, clandestine, undisclosed)
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sneak(clandestine, undisclosed)
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strange(obscure, unknown, clandestine, undisclosed)
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sub-rosa(secret, clandestine, undisclosed, top-secret)
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top-secret(secret, clandestine, undisclosed)
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top secret(expression, clandestine, undisclosed)
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unacknowledged(clandestine, undisclosed)
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under-the-table(secret, clandestine, undisclosed, top-secret)
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under false pretense(expression, idiom, clandestine, undisclosed)
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APASmart Define. (2015). cloak-and-dagger thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/cloak-and-dagger/thesaurus/synonyms
ChicagoSmart Define. 2015. "cloak-and-dagger thesaurus" https://smartdefine.org/cloak-and-dagger/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, cloak-and-dagger thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/cloak-and-dagger/thesaurus/synonyms>.
MLASmart Define. "cloak-and-dagger thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/cloak-and-dagger/thesaurus/synonyms>