Hi! One of my students asked me about an adjective to describe a person with a certain kind of stubbornness, "quietly aggressive." My impression is, a quiety aggressive person is a peson, when someone gives him or her advice, who does not listen to the advice, does not talk back or explain his or her own idea, and sticks to his or her own policy. (1) Is this definition proper? (2) Is this expression often used? (3) Are there many such people in America or is it particularly fit to describe the characteristics of the people of some country (for example, some Japanese who don't talk much)? Thank you! Ryu PS: In fact, the student of mine heard this expression used for his mother when she underwent a rehabilitation in America after a leg injury. She wouldn't listen to the advice, without explaining why (she can't speak English, but she could in Japanese through his English-speaking son), and then one of the rehabilitation advisors used this expression to describe her stubbornness.