Added 9 October 2026
confidential
/ˌkɒn.fɪˈdɛn.ʃəl/ adjective
Latin root: cōnfīdentia First recorded: 1641 Wiktionary
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about confidential at Wordnik → Where our words come from →
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Entrusted with private information and the confidence of another.
a confidential secretary
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(of information) given in confidence or in secret.
this arrangement must be kept confidential
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Denoting confidence or intimacy.
a confidential approach
Origin
From Latin cōnfīdentia + English -al. Possibly a calque of French confidentiel. First attested in 1641.
From Wiktionary, via Kaikki.org (CC BY-SA)