discreet
/dɪˈskriːt/Definitions
1. adjective
having or showing a careful and thoughtful choice of words; able to express oneself in a subtle and tactful way
“The diplomat’s discreet remarks helped to ease the tension between the two countries.”
2. noun
a person who is careful and tactful in their words and actions
“The hotel’s concierge was a discreet and helpful guide for the tourists.”