8
screened(verb, adjective, close, quiet, show)
8
shrouded(adjective, obscure, dark, secret, clandestine)
8
subconscious(adjective, individual, private, mental, unconscious)
8
undercover(adjective, secret, spy, clandestine, underground)
8
vague(adjective, obscure, heavy, strange, doubtful)
7
deep(adjective, hard, evil, obscure, complex)
7
indiscernible(adjective, secret, unseen, invisible)
7
stealthy(adjective, secret, private, clandestine, concealed)
6
cabalistic(adjective, evil, obscure, solid, strange)
6
close(adjective, quiet, solid, humble, shy)
6
clouded(adjective, secret, unknown, concealed, unseen)
6
inner(adjective, private, mental, unconscious, subconscious)
6
interior(adjective, private, mental, inner)
6
subtle(adjective, quiet, hard, obscure, plain)
6
undivulged(cover, obscure, dark, equivocal, ulterior)
6
unnoticeable(adjective, quiet, plain, imperceptible, discreet)
5
blind(adjective, show, concealed)
5
dormant
5
enigmatic(adjective, cover, hard, evil, obscure)
5
imperceptible(adjective, imaginary, inconspicuous, unremarkable, unseen)
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APASmart Define. (2015). hidden thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, hidden thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>.
MLASmart Define. "hidden thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms>