Definition of Glacial

Adjective: glacial gley-shul

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