frosty in WordNet English dictionary

1. pleasantly cold and invigorating
   "crisp clear nights and frosty mornings"; "a nipping wind"; "a nippy fall day"; "snappy weather"
   crisp  frosty  nipping  nippy  snappy 
   
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 frost
   "a frosty glass"; "hedgerows were rimed and stiff with frost"-Wm.Faulkner
   frosty  rimed  rimy