con·fi·den·tial 
/ˌkɑ:nfəˈdɛnʃəl/ adjective
/ˌkɑ:nfəˈdɛnʃəl/ adjective 1 [more confidential; most confidential] : secret or private
▪ These documents are completely/strictly confidential. ▪ confidential medical records ▪ Someone was leaking confidential information [=telling secrets] to the press. 2 [more confidential; most confidential] : showing that you are saying something that is secret or private
▪ “I have something to tell you,” John said in a confidential tone/voice. ▪ Her voice was quiet and confidential. 3 always used before a noun : trusted with secret or private information
▪ She worked as a confidential secretary to the mayor for many years.
▪ These documents are completely/strictly confidential. ▪ confidential medical records ▪ Someone was leaking confidential information [=telling secrets] to the press.
▪ “I have something to tell you,” John said in a confidential tone/voice. ▪ Her voice was quiet and confidential.
▪ She worked as a confidential secretary to the mayor for many years.
— con·fi·den·tial·ly adverb
▪ Students can confidentially report any problems they see in their schools. ▪ He leaned forward confidentially and began telling his story. ▪ Confidentially, I don't think she's very good at her job.
▪ Students can confidentially report any problems they see in their schools. ▪ He leaned forward confidentially and began telling his story. ▪ Confidentially, I don't think she's very good at her job.
