noun an inhabitant of the most northern regions.
2. hyperborean ·adj of or pertaining to the region beyond the north wind, or to its inhabitants.
3. hyperborean ·noun one of the people who lived beyond the north wind, in a land of perpetual sunshine.
4. hyperborean ·adj northern; belonging to, or inhabiting, a region in very far north; most northern; hence, very cold; fright, as, a hyperborean coast or atmosphere.