Hyperborean1. (a.) Of or pertaining to the region beyond the North wind, or to its inhabitants.
2. (a.) Northern; belonging to, or inhabiting, a region in very far north; most northern; hence, very cold; fright, as, a hyperborean coast or atmosphere.
3. (n.) One of the people who lived beyond the North wind, in a land of perpetual sunshine.
4. (n.) An inhabitant of the most northern regions.
Thesaurus Entries
Siberian, algid, antarctic, antipodean, arctic, austral, back of beyond, below zero, biting, bitter, bitterly cold, bleak, boreal, brisk, brumal, cold, cold as charity, cold as death, cold as ice, cold as marble, crisp, cutting, east, eastbound, easterly, eastermost, eastern, easternmost, freezing, freezing cold, frigid, gelid, glacial, godforsaken, hibernal, hiemal, ice-cold, ice-encrusted, icelike, icy, inaccessible, inclement, keen, meridional, nipping, nippy, north, northbound, northeast, northeasterly, northeastern, northerly, northern, northernmost, northwest, northwesterly, northwestern, numbing, occidental, oriental, out of reach, out-of-the-way, penetrating, piercing, pinching, raw, rigorous, severe, sharp, sleety, slushy, snappy, south, southbound, southeast, southeasterly, southeastern, southerly, southern, southernmost, southwest, southwesterly, southwestern, stone-cold, subzero, supercooled, unapproachable, ungetatable, untouchable, west, westbound, westerly, western, westernmost, winterbound, winterlike, wintery, wintry