68 entries under undisclosed topic. ×

2
under wraps(expression, secret, clandestine, underground)
2
unrevealed(clandestine, underground)
1
backstairs(clandestine, underground, discreet)
1
dissembled(clandestine, underground, discreet)
1
dissimulated(clandestine, underground, discreet)
1
in ambush(expression, clandestine, underground, discreet)
1
obscure(clandestine, underground, provisional, restrictive)
1
secretive(clandestine, underground, discreet)
1
sneak(clandestine, underground, discreet)
1
sub-rosa(secret, clandestine, underground, top-secret)
1
under-the-table(secret, clandestine, underground, top-secret)
0
abstruse(modern, advanced, clandestine, underground)
0
ambiguous(adjective, clandestine, underground, surreptitious)
0
backdoor(clandestine, underground)
0
camouflaged(clandestine, underground)
0
cloak-and-dagger(secret, clandestine, underground, top-secret)
0
closet(secret, clandestine, underground, confidential)
0
clouded(clandestine, underground)
0
conspiratorial(clandestine, underground)
0
covered(clandestine, underground)
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APASmart Define. (2016). restricted thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/restricted/thesaurus/synonyms
ChicagoSmart Define. 2016. "restricted thesaurus" https://smartdefine.org/restricted/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, restricted thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/restricted/thesaurus/synonyms>.
MLASmart Define. "restricted thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/restricted/thesaurus/synonyms>