130 entries under secret topic. ×

4
unrevealed(adjective, obscure, individual, unknown)
3
in private(expression, idiom, mysterious, reticent)
3
obscure(adjective, quiet, remote, unknown)
3
on the sly(expression, idiom, hidden, sneaky)
3
secretive(adjective, reserved, mysterious, reticent)
3
top secret(expression, clandestine, underground, undisclosed)
2
abstruse(adjective, obscure, unknown, hidden)
2
classified(adjective, obscure, intimate, unknown)
2
deep-seated(adjective, penetrating, personal, innermost)
2
disguised(unknown, hidden, clandestine, concealed)
2
guarded(adjective, mysterious, reticent, penetrating)
2
indwelling(adjective, penetrating, personal, innermost)
2
ingrained(adjective, individual, specific, typical)
2
not public(expression, adjective, separate, simple, special)
2
shrouded(adjective, obscure, unknown, hidden)
2
sly(adjective, hidden, clandestine, underground)
2
sneaky(adjective, hidden, clandestine, underground)
2
thorough(adjective, personal, innermost)
2
unauthorized(adjective, hidden, sneaky, covert)
2
underhanded(hidden, clandestine, underground, undisclosed)
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APASmart Define. (2016). private thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/private/thesaurus/synonyms
ChicagoSmart Define. 2016. "private thesaurus" https://smartdefine.org/private/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, private thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/private/thesaurus/synonyms>.
MLASmart Define. "private thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/private/thesaurus/synonyms>