Of or at a low or relatively low temperature, especially when compared with the human body. Lacking affection or warmth of feeling; unemotional. (of the scent or trail of a hunted person or animal) no longer fresh and easy to follow. Without preparation or rehearsal; unawares. A low temperature, especially in the atmosphere; cold weather; a cold environment. A common viral infection in which the mucous membrane of the nose and throat becomes inflamed, typically causing running at the nose, sneezing, a sore throat, and other similar symptoms. Completely; entirely.