discreet /di’skrit,di’skri:t/:a.(of people or their behaviour)careful and polite,esp.in what one chooses (not)to say;showing good sense and judgement a discreet silence,opposite(反义词):indiscreet discrete /di’skrit,di’skri:t/a.(esp.tech or fml)seperate,discontinuous
discretion:n.(1)the quality of being discreet (2)the ability to decide
what is most suitable to be done (3)at someone’discretion:according to someone’s decision (4)years of discretion:the/an age when one is considered (5)discretion is the better part of valour: