62 entries under secret topic. ×

27
furtive(adjective, honest, dishonest, deceitful)
24
clandestine(adjective, dishonest, deceitful, hidden)
24
stealthy(adjective, quiet, dishonest, sly)
20
covert(adjective, hidden, sly, clandestine)
20
underhand(adjective, dishonest, deceitful, sly)
18
sly(adjective, honest, dishonest, deceitful)
17
undercover(adjective, dishonest, hidden, spy)
15
hidden(verb, adjective, clandestine, underground)
14
hush-hush(adjective, dishonest, hidden, sneaky)
13
private(adjective, unknown, hidden, clandestine)
13
underground(adjective, unknown, hidden, concealed)
11
concealed(adjective, dishonest, cunning, hidden)
11
hole-and-corner(adjective, hidden, spy, sneaky)
11
skulking(adjective, concealment, sneaky, covert)
9
sneaking(adjective, mean, smooth, honest, dishonest)
7
cloak-and-dagger(adjective, full, clandestine, underground)
7
fraudulent(adjective, deception, dishonest, cunning, deceitful)
6
confidential(adjective, hidden, spy, clandestine)
6
occult(noun, unknown, hidden, underground)
5
under-the-table(adjective, hidden, clandestine, sneaky)
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APASmart Define. (2015). surreptitious thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/surreptitious/thesaurus/synonyms
ChicagoSmart Define. 2015. "surreptitious thesaurus" https://smartdefine.org/surreptitious/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, surreptitious thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/surreptitious/thesaurus/synonyms>.
MLASmart Define. "surreptitious thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/surreptitious/thesaurus/synonyms>