Synonyms|81Antonyms|27|Broader|0Narrower|0Related|37
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intricate
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knowledge
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little known(expression, adjective, untraveled)
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murky
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quietly
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secret
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shady
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stealthy
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subliminal
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subtle
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surreptitious
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ulterior
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uncharted(adjective, unfound)
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under cover(expression, obscure, dark, unseen)
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underlying
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unheard-of(adjective, unfound)
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unheard of(expression, adjective, untraveled)
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unremembered
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vague
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veiled
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APASmart Define. (2015). undetected thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undetected/thesaurus/synonyms
ChicagoSmart Define. 2015. "undetected thesaurus" https://smartdefine.org/undetected/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, undetected thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undetected/thesaurus/synonyms>.
MLASmart Define. "undetected thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/undetected/thesaurus/synonyms>