62 entries under hidden topic. ×

8
unrevealed(adjective, obscure, secret, unknown)
7
cryptic(adjective, obscure, dark, secret, reticent)
7
mysterious(adjective, quiet, strange, secret)
7
obscured(adjective, show, secret, clandestine)
7
undisclosed(adjective, obscure, dark, imperceptible)
5
obscure(adjective, dark, secret, concealed)
5
shrouded(adjective, obscure, dark, secret)
5
under wraps(expression, adjective, idiom, show, secret)
5
covered(obscure, secret, unknown, concealed)
5
dark(adjective, feature, obscure, mysterious)
5
screened(adjective, quiet, secret, imperceptible)
5
under-the-table(adjective, secret, private, clandestine)
4
esoteric(adjective, strange, secret, unknown)
4
hole-and-corner(secret, private, spy, sneaky)
4
recondite(adjective, strange, secret, unknown)
4
secluded(adjective, close, quiet, private, unknown)
4
skulking(adjective, secret, private, sneaky)
4
unknown(strange, secret, curious, concealed)
3
abstruse(strange, secret, unknown, curious)
3
mystic(secret, unknown, concealed, unseen)
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APASmart Define. (2015). covert thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/covert/thesaurus/synonyms
ChicagoSmart Define. 2015. "covert thesaurus" https://smartdefine.org/covert/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, covert thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/covert/thesaurus/synonyms>.
MLASmart Define. "covert thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/covert/thesaurus/synonyms>