61 entries under unknown topic. ×

3
unintelligible(adjective, obscure, difficult, dark, uncertain)
3
unrevealed(adjective, obscure, dark, secret)
2
classified(obscure, clandestine, underground, undisclosed)
2
enigmatical(adjective, obscure, strange, uncertain, vague)
2
hermetic(obscure, dark, complex, hidden)
2
undisclosed(cover, obscure, dark, hidden)
2
unseen(adjective, obscure, dark, secret)
1
backdoor(close, obscure, inside, clandestine)
1
buried(cover, obscure, dark, hidden)
1
camouflaged(close, obscure, clandestine, underground)
1
clouded(obscure, dark, hidden, indefinite)
1
covered(obscure, secret, hidden, concealed)
1
disguised(obscure, secret, hidden, clandestine)
1
eclipsed(obscure, dark, secret, hidden)
1
hermetical(obscure, dark, secret, hidden)
1
imperceivable(obscure, dark, secret, hidden)
1
indiscernible(obscure, dark, secret, hidden)
1
invisible(obscure, dark, secret, hidden)
1
on the QT(expression, idiom, obscure, mysterious, reticent)
1
out-of-the-way(obscure, complex, clandestine, underground)
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APASmart Define. (2016). cryptic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/cryptic/thesaurus/synonyms
ChicagoSmart Define. 2016. "cryptic thesaurus" https://smartdefine.org/cryptic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, cryptic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/cryptic/thesaurus/synonyms>.
MLASmart Define. "cryptic thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/cryptic/thesaurus/synonyms>