Synonyms|498Antonyms|50|Broader|2Narrower|0Related|762

60 entries under clandestine topic. ×

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restricted(underground, undisclosed)
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secretive(underground, undisclosed)
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shrouded(obscure, unknown, underground, undisclosed)
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sly(underground, undisclosed)
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sneak(underground, undisclosed)
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stealthy(underground, undisclosed)
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sub-rosa(underground, undisclosed)
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surreptitious(underground, undisclosed)
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top-secret(underground, undisclosed)
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top secret(expression, underground, undisclosed)
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unacknowledged(underground, undisclosed)
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under-the-table(underground, undisclosed)
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under false pretense(expression, idiom, underground, undisclosed)
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under wraps(expression, underground, undisclosed)
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undercover(underground, undisclosed)
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underground(obscure, unknown, undisclosed, unrevealed)
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underhanded(underground, undisclosed)
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unintelligible(obscure, deep, unknown, underground)
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unrevealed(obscure, unknown, underground, undisclosed)
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veiled(obscure, unknown, underground, undisclosed)
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APASmart Define. (2015). out-of-the-way thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/out-of-the-way/thesaurus/synonyms
ChicagoSmart Define. 2015. "out-of-the-way thesaurus" https://smartdefine.org/out-of-the-way/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2015, out-of-the-way thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/out-of-the-way/thesaurus/synonyms>.
MLASmart Define. "out-of-the-way thesaurus" 14 April 2015. Web. 2 October 2026. <https://smartdefine.org/out-of-the-way/thesaurus/synonyms>