Things that are glacial are super cold. A place can be glacial — like the South Pole — but a person can be glacial, too, like that unfriendly girl who gave you a glacial stare.

The word glacial is related to the word glacier, which is a huge piece of ice. If something or someone is glacial, that thing or person is icy. You can give someone you don’t like a glacial look, or you can go skiing on a glacial morning. Glacial comes from the Latin glacies, which sounds like the name of a frozen dessert, but which actually just means "ice."

Definitions of glacial

adj relating to or derived from a glacier

glacial deposit”

adj extremely cold

glacial winds”
arctic, frigid, gelid, icy, polar
having a low or inadequate temperature or feeling a sensation of coldness or having been made cold by e.g. ice or refrigeration

adj devoid of warmth and cordiality; expressive of unfriendliness or disdain

“a glacial handshake”
frigid, frosty, frozen, icy, wintry
extended meanings; especially of psychological coldness; without human warmth or emotion

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