icy in WordNet English dictionary

1. extremely cold
   "an arctic climate"; "a frigid day"; "gelid waters of the North Atlantic"; "glacial winds"; "icy hands"; "polar weather"
   arctic  frigid  gelid  glacial  icy  polar 
   
2. devoid of warmth and cordiality; expressive of unfriendliness or disdain
   "a frigid greeting"; "got a frosty reception"; "a frozen look on their faces"; "a glacial handshake"; "icy stare"; "wintry smile"
   frigid  frosty  frozen  glacial  icy  wintry 
   
3. covered with or containing or consisting of ice
   "icy northern waters"
   icy 
   
4. shiny and slick as with a thin coating of ice
   "roads and trees glazed with an icy film"
   icy