Synonyms|208Antonyms|83|Broader|2Narrower|1Related|209

55 entries under obscure topic. ×

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ambiguous(unknown, clandestine, underground, undisclosed)
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backdoor(unknown, clandestine, underground, undisclosed)
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classified(unknown, clandestine, underground, undisclosed)
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cloak-and-dagger(unknown, clandestine, underground, undisclosed)
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cloak and dagger(expression, idiom, unknown, unrevealed)
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closet(unknown, clandestine, underground, undisclosed)
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conspiratorial(unknown, clandestine, underground, undisclosed)
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enigmatical(unknown, clandestine, underground, undisclosed)
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furtive(unknown, clandestine, underground, undisclosed)
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on the QT(expression, idiom, unknown, clandestine)
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strange(unknown, clandestine, underground, undisclosed)
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under cover(expression, dark)
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unenlightened(unknown, clandestine, underground, undisclosed)
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unfrequented(unknown, clandestine, underground, undisclosed)
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unpublished(unknown, clandestine, underground, undisclosed)
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APASmart Define. (2015). unseen thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unseen/thesaurus/synonyms
ChicagoSmart Define. 2015. "unseen thesaurus" https://smartdefine.org/unseen/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unseen thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unseen/thesaurus/synonyms>.
MLASmart Define. "unseen thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unseen/thesaurus/synonyms>