adj. 1 a lacking friendliness or enthusiasm; apathetic, formal, forced. b dull, flat, insipid. c chilling, depressing. 2 (of a woman) sexually unresponsive. 3 (esp. of climate or air) cold. frigid zones the parts of the earth north of the Arctic Circle and south of the Antarctic Circle. frigidity n. frigidly adv. frigidness n.
[ L frigidus f. frigere be cold f. frigus (n.) cold ]