234 entries under adjective topic. ×

9
surreptitious(dishonest, cunning, secret, hidden)
8
mysterious(evil, obscure, strange, new)
7
arcane(hard, evil, obscure, difficult)
7
hush-hush(separate, dishonest, secret, hidden)
7
out of sight(expression, idiom, secret, hidden)
7
personal(cover, obscure, dark, private)
7
privy(cover, separate, obscure, dark)
7
shrouded(verb, obscure, secret, hidden)
7
ulterior(show, obscure, secret, hidden)
7
underground(secret, unknown, hidden, spy)
7
undisclosed(obscure, dark, secret, imperceptible)
6
abstruse(evil, obscure, difficult, dark)
6
cloaked
6
covered(verb, obscure, fake, counterfeit)
6
imperceptible(hidden, insensible, inconspicuous, unremarkable)
6
incognito(strange, disguise, secret, hidden)
6
intrinsic(individual, basic, fundamental, private)
6
stealthy(dishonest, cunning, secret, hidden)
6
unapparent(invisible, latent)
6
unknown(obscure, dark, superior, strange)
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APASmart Define. (2015). concealed thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/concealed/thesaurus/synonyms
ChicagoSmart Define. 2015. "concealed thesaurus" https://smartdefine.org/concealed/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, concealed thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/concealed/thesaurus/synonyms>.
MLASmart Define. "concealed thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/concealed/thesaurus/synonyms>