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Adjective: glacial  gley-shul
  1. Relating to or derived from a glacier
    "glacial deposit"
  2. Devoid of warmth and cordiality; expressive of unfriendliness or disdain
    "a glacial handshake";
    - frigid, frosty, frozen, icy, wintry
  3. Extremely cold
    "glacial winds";
    - arctic, frigid, gelid, icy, polar

See also: cold

Encyclopedia: Glacial