1
QT(secret, hidden, unknowing, clandestine, underground)
1
actionable
1
against the law(expression, idiom)
1
anarchic
1
anarchistic
1
artful(sneaky, covert, secretive)
1
back door
1
backdoor(sensitive, clandestine, underground, undisclosed, sub-rosa)
1
black market
1
bootleg
1
calculating(sneaky, covert, secretive)
1
camouflaged(secret, hidden, clandestine, underground, undisclosed)
1
cautious(sneaky, covert, secretive)
1
circumspect(sneaky, covert, secretive)
1
classified(sensitive, secret, clandestine, underground, undisclosed)
1
cloaked(secret, hidden, clandestine, sneaky, underhanded)
1
close(clandestine, underground, undisclosed)
1
confidential(secret, clandestine, underground, undisclosed, top-secret)
1
conspiratorial(clandestine, underground, undisclosed, sneaky, covert)
1
contraband
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APASmart Define. (2015). under-the-table thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/under-the-table/thesaurus/synonyms
ChicagoSmart Define. 2015. "under-the-table thesaurus" https://smartdefine.org/under-the-table/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, under-the-table thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/under-the-table/thesaurus/synonyms>.
MLASmart Define. "under-the-table thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/under-the-table/thesaurus/synonyms>