The Collaborative International Dictionary of English v.0.48:

brunet \bru*net"\, Brunette \Bru*nette"\, adj.
   1. being or having dark-colored skin and hair; contrasted
      with blond. [Narrower terms: adust, sunburned burned
      brown by the sun; black, brown; black-haired,
      dark-haired; browned, suntanned, tanned; grizzled,
      roan; nutbrown]
      [WordNet 1.5] brunet

The Collaborative International Dictionary of English v.0.48:

brunet \bru*net"\, Brunette \Bru*nette"\, n. [F. brunet,
   brunette, brownish, dim. of brun, brune, brown, fr. OHG.
   br?n. See Brown, a.]
   A girl or woman with a somewhat brown or dark complexion. --
   a. Having a dark tint.
   [1913 Webster]

WordNet (r) 3.0 (2006):

brunette
    adj 1: marked by dark or relatively dark pigmentation of hair or
           skin or eyes; "a brunette beauty" [syn: brunet,
           brunette] [ant: blond, blonde, light-haired]
    n 1: a person with dark (brown) hair [syn: brunet, brunette]