Definition of hyperborean in US English:

hyperborean

noun

literary
  • 1An inhabitant of the extreme north.

    • ‘We restricted our density calculations to birds on the water, with the exception of glaucous gulls (Larus hyperborean).’
    1. 1.1Greek Mythology A member of a race worshiping Apollo and living in a land of sunshine and plenty beyond the north wind.
      • ‘This island is inhabited by the Hyperboreans there is also on the island a magnificent sacred precinct of Apollo.’
      • ‘He is cast or casts himself on a pyre, but is miraculously saved by Apollo and translated to the land of the Hyperboreans.’
      • ‘The Scythians and the Hyperboreans (sometimes the Aethiopians) were the noble savages of the Ancients.’
      • ‘The last point of the ‘northern twist of the axis’ of which the griffins are said to be the ‘figure’ is the Hyperborean paradise.’
      very cold, bitterly cold, bitter, freezing, frozen, frosty, icy, icy-cold, ice-cold, chilly, wintry, bleak, sub-zero, arctic, siberian, polar, glacial
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adjective

literary
  • Relating to the extreme north.

    • ‘The streets are quite chilled, inside my head is brisk at best and the beat, well, the beat is positively hyperborean.’
    • ‘Its grid plan, zoned districts and splendid Nevsky Prospect created a strange kind of hyperborean vertigo in those who contemplated it.’
    • ‘After hearing a glopping sound hit the snow covered ground, Hugh's skinless face begins scanning the hyperborean terrain for his epidermal layer.’
    chilly, cool, freezing, icy, snowy, icy-cold, glacial, wintry, crisp, frosty, frigid, bitter, bitterly cold, biting, piercing, numbing, sharp, raw, polar, arctic, siberian
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Origin

Late Middle English: from late Latin hyperboreanus, from Greek huperboreos, from huper ‘beyond’ + boreas ‘north wind’.

Pronunciation