Frosts meaning : A cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing. The cold weather that causes these ice crystals to form. Coldness or insensibility; severity or rigidity of character. The act of freezing; the congelation of water or other liquid. A shade of white, like that of frost. A disappointment; a cheat. To cover with frost. To become covered with frost. To coat (something, e.g. a cake) with icing to resemble frost. To anger or annoy. To sharpen (the points of a horse's shoe) to prevent it from slipping on ice.