Cold  —adj. 1 of or at a low temperature. 2 not heated; cooled after heat. 3 feeling cold. 4 lacking ardour, friendliness, or affection. 5 a depressing, uninteresting. B (of colour) suggestive of cold. 6 a dead. B colloq. Unconscious. 7 (of a scent in hunting) grown faint. 8 (in games) far from finding what is sought. —n. 1 a prevalence of low temperature. B cold weather or environment. 2 infection of the nose or throat with sneezing, catarrh, etc. —adv. Unrehearsed.  in cold blood without emotion, deliberately. Out in the cold ignored, neglected. Throw (or pour) cold water on be discouraging about.  coldly adv. Coldness n. [old english]