brassy
 /ˈbræsi, Brit ˈbrɑːsi/  adj  , brass·i·er, -est
  1 : very confident and aggressive in a loud and sometimes annoying way
   a brassy woman/reporter
  2 : having a loud and often harsh sound
   brassy music
   a big, brassy voice
  3 : resembling or suggesting brass
   a brassy shine
   brassy colors
  brass·i·ly /ˈbræsəli, Brit ˈbrɑːsəli/  adv  
  brass·i·ness  noun   [  noncount  ]