confidential

 
Pronunciation: /kɒnfɪˈdɛnʃ(ə)l/

adjective

  • intended to be kept secret: confidential information
  • (of a person’s tone of voice) indicating that what one says is private or secret: he dropped his voice to a confidential whisper
  • [attributive] entrusted with private or restricted information: a confidential secretary

Derivatives

confidentiality

Pronunciation: /-ʃɪˈalɪti/
noun