Synonyms|110Antonyms|3|Broader|1Narrower|0Related|37

26 entries under secret topic. ×

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sly(adjective, private, hidden, sneaky)
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sneaky(adjective, private, hidden, covert)
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stealthy(adjective, private, hidden, sneaky)
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unauthorized(adjective, private, hidden, sneaky)
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underhand(adjective, private, hidden, sneaky)
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veiled(adjective, private, hidden, sneaky)
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APASmart Define. (2015). on the sly thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/on_the_sly/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the sly thesaurus" https://smartdefine.org/on_the_sly/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, on the sly thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/on_the_sly/thesaurus/synonyms>.
MLASmart Define. "on the sly thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/on_the_sly/thesaurus/synonyms>