112 entries under secret topic. ×

7
stealthy(adjective, private, clandestine, concealed)
6
cabalistic(adjective, evil, obscure, solid, strange)
6
close(adjective, quiet, solid, humble, shy)
6
clouded(adjective, unknown, concealed, unseen)
5
individual(adjective, separate, private, mental)
5
sneaking(private, sneaky, covert)
5
underhand(adjective, private, clandestine, sneaky)
5
unknowable(adjective, obscure, solid, dark, superior)
4
cloaked(verb, adjective, obscure, unknown)
4
confidential(adjective, close, quiet, separate, safe)
4
hermetic(adjective, close, quiet, obscure, mysterious)
4
impenetrable(adjective, obscure, difficult, solid, dark)
4
secretive(adjective, quiet, obscure, plain, strange)
4
sequestered(adjective, close, quiet, separate, humble)
4
shadowy(adjective, unseen)
3
eclipsed(adjective, unseen)
3
inconspicuous(adjective, quiet, plain, humble, minor)
3
sneaky(adjective, private, clandestine, underground)
3
withheld(adjective, concealed, unseen)
2
close-lipped(adjective, quiet, reserved, private)
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APASmart Define. (2015). hidden thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, hidden thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>.
MLASmart Define. "hidden thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms>