93 entries under adjective topic. ×

11
sneak(clandestine, underground, undisclosed)
9
sneaking(mean, smooth, honest, dishonest)
8
oblique(obscure, dishonest, cunning, deceitful)
8
underhanded(dishonest, cunning, deceitful, crafty)
7
backstairs(clandestine, underground, undisclosed)
7
cloak-and-dagger(full, secret, clandestine, underground)
7
devious(dishonest, cunning, deceitful, tricky)
7
fraudulent(deception, dishonest, cunning, deceitful)
6
confidential(secret, hidden, spy, clandestine)
6
deceitful(mean, smooth, dishonest, crafty)
6
privy
5
crafty(mean, smooth, dishonest, cunning)
5
factitious(deception, untruth)
5
quiet
5
under-the-table(secret, hidden, clandestine, sneaky)
5
undisclosed(secret, unknown, hidden, concealed)
5
veiled(secret, unknown, hidden, clandestine)
4
mystic(secret, unknown, hidden, underground)
4
scheming(mean, smooth, dishonest, deceitful)
4
secluded(secret, unknown, hidden, underground)
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APASmart Define. (2015). surreptitious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/surreptitious/thesaurus/synonyms
ChicagoSmart Define. 2015. "surreptitious thesaurus" https://smartdefine.org/surreptitious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, surreptitious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/surreptitious/thesaurus/synonyms>.
MLASmart Define. "surreptitious thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/surreptitious/thesaurus/synonyms>