72 entries under secret topic. ×

8
unrevealed(adjective, obscure, unknown, hidden)
7
confidential(adjective, close, quiet, separate)
7
cryptic(adjective, obscure, dark, reticent)
7
mysterious(adjective, quiet, strange, hidden)
7
obscured(adjective, show, hidden, clandestine)
7
secretive(adjective, mean, smooth, clandestine)
5
obscure(adjective, dark, hidden, concealed)
5
occult(adjective, strange, unknown, imperceptible)
5
shrouded(adjective, obscure, dark, hidden)
5
sly(adjective, quiet, mean, clever)
5
sneak(clandestine, underground, undisclosed)
5
sneaky(adjective, quiet, mean, sly)
5
under wraps(expression, adjective, idiom, show)
5
covered(obscure, unknown, hidden, concealed)
5
screened(adjective, quiet, hidden, imperceptible)
5
under-the-table(adjective, private, hidden, clandestine)
5
underhanded(adjective, dishonest, deceitful, clandestine)
4
arcane(adjective, strange, clandestine, underground)
4
cloak-and-dagger(adjective, show, full, clandestine)
4
esoteric(adjective, strange, unknown, hidden)
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APASmart Define. (2015). covert thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/covert/thesaurus/synonyms
ChicagoSmart Define. 2015. "covert thesaurus" https://smartdefine.org/covert/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, covert thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/covert/thesaurus/synonyms>.
MLASmart Define. "covert thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/covert/thesaurus/synonyms>