1 to be kept secret; not to be made known to others 恪守秘密的; 机密的
*confidential information, files, letters 机密情报、文件、信件.
2 [attrib 作定语] trusted with secrets 获得信任参与机密的
*a confidential secretary 机要秘书.
3 trusting 表示信任的
*speaking in a confidential tone 用表示信任的口吻说话.
spoken or written in secret and intended to be kept secret
a confidential government report
Doctors are required to keep patients' records completely confidential .
The information will be regarded as strictly confidential (=completely confidential) .
a confidential way of speaking or behaving shows that you do not want other people to know what you are saying
His voice sank into a confidential whisper.
1. This is completely confidential. 这是绝密的。