There are several synonyms for "biting-cold" that can be used to describe harsh winter weather. These include frigid, bitter, icy, freezing, piercing, numbing, and bone-chilling. Each of these words conveys a sense of extreme coldness that is both uncomfortable and potentially dangerous, particularly when temperatures drop below freezing. Whether you're bundling up for a winter adventure or simply commuting to work on a chilly morning, these synonyms for "biting-cold" can help you express the intensity of the winter weather and stay warm and safe in the face of harsh conditions.