30
secret(adjective, adverb, close, quiet, show)
29
private(adjective, adverb, close, quiet, show)
18
intimate(adjective, close, friendly, warm, attitude)
15
privy(adjective, separate, intimate, secret, private)
14
classified(adjective, close, show, intimate, secret)
12
personal(adjective, close, quiet, separate, easy)
10
hush-hush(adjective, show, separate, informal, intimate)
10
close(adjective, quiet, easy, friendly, warm)
9
clandestine(adjective, special, intimate, secret, hidden)
8
familiar(adjective, close, easy, friendly, warm)
7
covert(adjective, close, quiet, separate, secret)
7
esoteric(adjective, secret, private, clandestine, underground)
7
inside(adjective, show, intimate, secret, private)
7
off the record(expression, adjective, idiom, adverb, intimate)
7
trustworthy(adjective, sound, trusted)
7
undercover(adjective, secret, hidden, spy, clandestine)
6
privileged(adjective, show, secret, private, classified)
6
special(adjective, intimate, private, penetrating, detailed)
5
arcane(adjective, intimate, secret, private, restricted)
5
bosom(adjective, close, warm, near, devoted)
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APASmart Define. (2015). confidential thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/confidential/thesaurus/synonyms
ChicagoSmart Define. 2015. "confidential thesaurus" https://smartdefine.org/confidential/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, confidential thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/confidential/thesaurus/synonyms>.
MLASmart Define. "confidential thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/confidential/thesaurus/synonyms>