Chesterfieldian

Noun

 * 1) Someone who acts in a sophisticated, aristocratic manner, reminiscent of the.
 * 2) * 1905, review of Studies in Montaigne, in The Nation (volume 80, no 2067, Feb 9, 1905) p. 118
 * For example, in the chapter on “The Imperial Family," by Baron Sannomiya, this consummate Chesterfieldian, who acts as the court chamberlain, tells us what went on&mdash;outside of the imperial family.

Adjective

 * 1) In the style of the fourth Earl of Chesterfield, marked by brilliance, wit, and elegance in writing, and aristocratic assurance in life