Siberian, algid, arctic, below freezing, below zero, benumbed, biting , bitter, blasting, bleak, boreal, brisk, brumal, chill , chilled, cool, crisp , cutting, frigid, frore, frosty, frozen, gelid, glacial, have goose bumps, hawkish, hiemal, hyperborean, icebox, iced, icy, inclement, intense, keen , nipping, nippy, numbed, numbing, one-dog night, penetrating, piercing, polar, raw, rimy, severe, sharp, shivery, sleety, snappy, snowy, stinging, two-dog night, wintry