debonaire adj 1: having a sophisticated charm; "a debonair gentleman" [syn: {debonair}, {debonaire}, {debonnaire}, {suave}] 2: 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" [syn: {chipper}, {debonair}, {debonaire}, {jaunty}]