[adj] smoothly agreeable and courteous with a degree of sophistication; "he was too politic to quarrel with so important a personage"; "the hostess averted a confrontation between two guests with a diplomatic change of subject"; "the manager pacified the customer with a smooth apology for the error"; "affable, suave, moderate men...smugly convinced of their respectability" - Ezra Pound
[adj] having a sophisticated charm; "a debonair gentleman"