having a cheerful, lively, and self-confident air; "looking chipper, like a man diverted by his own wit"- Frances G Patton; "life that is gay, brisk, and debonair"- H M Reynolds; "walked with a jaunty step"; "a jaunty optimist"
A man who is debonair is confident, charming, and well-dressed. He was a handsome, debonair, death-defying racing-driver. = suave. a man who is debonair is fashionable and confident (de bonne aire )