knuckle duster (noun) brass knuckles: metal covering for fingers
Sinonime: Siberian, arctic, biting, bitter, chill, chilled,
chilly, cutting, frigid, frost-bound, frosty, gelid, glacial, hawkish, icy, nippy, numbing, one-dog night, penetrating, polar, raw, shivery, snappy, two-dog night, wintry
Antonime: boiling, heated, hot