92 entries under obscure topic. ×

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Greek to me(adjective, puzzling, perplexing)
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backdoor(unknown, clandestine, underground, undisclosed)
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camouflaged(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(secret, unknown, clandestine, underground)
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on the QT(expression, idiom, unknown, clandestine)
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secret supernatural(expression, deep, mysterious)
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under cover(expression, dark, unseen)
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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unpublished(unknown, clandestine, underground, undisclosed)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). esoteric thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/esoteric/thesaurus/synonyms
ChicagoSmart Define. 2015. "esoteric thesaurus" https://smartdefine.org/esoteric/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, esoteric thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/esoteric/thesaurus/synonyms>.
MLASmart Define. "esoteric thesaurus" 30 July 2015. Web. 26 September 2026. <https://smartdefine.org/esoteric/thesaurus/synonyms>