Definition of confidential adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˌkɒnfɪˈdenʃl//
    ; NAmE NAmE//ˌkɑːnfɪˈdenʃl//
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  1. 1meant to be kept secret and not told to or shared with other people confidential information/documents Your medical records are strictly confidential (= completely secret).
  2. 2(of a way of speaking) showing that what you are saying is private or secret He spoke in a confidential tone, his voice low.
  3. 3[only before noun] trusted with private or secret information a confidential secretary
  4. Extra examples The affair must be kept confidential. The findings are strictly confidential. commercially confidential data Employees are fully aware that they are not to use confidential information for the purposes of insider dealing. The envelope says it is private and confidential. There is concern about several confidential documents which have gone missing. Your medical records are strictly confidential.
See the Oxford Advanced American Dictionary entry: confidential