C2 careful not to cause embarrassment or attract too much attention, especially by keeping something secret审慎的,谨慎的,小心的
The family made discreet enquiries about his background.那家人小心翼翼地打听他的背景。
They are very good assistants, very discreet - they wouldn't go talking to the press.他们都是很好的助手,非常谨慎——不会向新闻界透露什么的。
Note:
- Do not confuse with discrete.