5
hidden(verb, adjective, close, quiet, separate)
5
thick(adjective, close, open, easy, friendly)
5
trusty
5
chummy(adjective, close, open, easy, friendly)
5
closet(noun, adjective, close, quiet, intimate)
5
deep(adjective, intimate, secret, private, penetrating)
5
guarded(adjective, intimate, private, personal)
5
internal(adjective, intimate, secret, private, penetrating)
5
not for publication(expression, adjective, idiom, adverb, sensitive)
5
restricted(adjective, close, show, secret, private)
4
detailed(adjective, intimate, private, personal)
4
exclusive(adjective, special, intimate, secret, private)
4
exhaustive(adjective, intimate, private, personal)
4
faithful(adjective, close, sound, warm, near)
4
honest
4
immediate(adjective, intimate, private, personal)
4
penetrating(adjective, intimate, private, personal)
4
profound(adjective, intimate, private, personal)
4
surreptitious(adjective, secret, hidden, spy, clandestine)
4
thorough(adjective, intimate, private, personal)
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APASmart Define. (2015). confidential thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/confidential/thesaurus/synonyms
ChicagoSmart Define. 2015. "confidential thesaurus" https://smartdefine.org/confidential/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, confidential thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/confidential/thesaurus/synonyms>.
MLASmart Define. "confidential thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/confidential/thesaurus/synonyms>