73 entries under clandestine topic. ×

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abstruse(underground, undisclosed)
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arcane(underground, undisclosed)
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backdoor(underground, undisclosed)
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buried(secret, hidden, underground, underhanded)
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classified(underground, undisclosed)
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clouded(underground, undisclosed)
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covered(underground, undisclosed)
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cryptic(underground, undisclosed)
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discreet(underground, undisclosed)
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dissimulated(underground, undisclosed)
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enigmatical(underground, undisclosed)
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esoteric(underground, undisclosed)
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in ambush(expression, underground, undisclosed)
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mysterious(underground, undisclosed)
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mystic(underground, undisclosed)
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mystical(underground, undisclosed)
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obscured(secret, hidden, underground, underhanded)
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occult(underground, undisclosed)
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recondite(underground, undisclosed)
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restricted(underground, undisclosed)
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APASmart Define. (2015). underhand thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/underhand/thesaurus/synonyms
ChicagoSmart Define. 2015. "underhand thesaurus" https://smartdefine.org/underhand/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, underhand thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/underhand/thesaurus/synonyms>.
MLASmart Define. "underhand thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/underhand/thesaurus/synonyms>