24 entries under hidden topic. ×

13
covert(adjective, show, secret, clandestine)
12
concealed(adjective, show, obscure, secret)
9
guarded(adjective, cover, obscure, secret)
8
obscured(adjective, show, secret, imperceptible)
7
shrouded(adjective, cover, obscure, secret)
6
buried(adjective, cover, show, obscure, secret)
6
cryptic(adjective, cover, obscure, secret, unknown)
6
obscure(adjective, cover, secret, unknown)
6
privy(adjective, cover, obscure, secret)
6
secret(adjective, separate, unknown, concealed)
4
under wraps(expression, adjective, obscure, secret)
2
hush-hush(separate, secret, underground, underhanded)
2
invisible(adjective, unable)
2
underhanded(secret, clandestine, underground, privy)
1
QT(secret, unknown, concealed, underhanded)
1
camouflaged(secret, underground, underhanded, covered)
1
cloaked(secret, unknown, concealed, underhanded)
1
disguised(secret, unknown, imperceptible, underhanded)
1
incog(secret, underground, underhanded, covered)
1
masked(secret, imperceptible, underhanded, covered)
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APASmart Define. (2015). ulterior thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/ulterior/thesaurus/synonyms
ChicagoSmart Define. 2015. "ulterior thesaurus" https://smartdefine.org/ulterior/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, ulterior thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/ulterior/thesaurus/synonyms>.
MLASmart Define. "ulterior thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/ulterior/thesaurus/synonyms>