adj. 25B6; adjective
icy roads : FROSTY, frozen (over), iced over, ice-bound, ice-covered, iced up; slippery; poetic/literary rimy.
an icy wind : FREEZING, chill, chilly, biting, bitter, raw, arctic, glacial, Siberian, polar, gelid.
an icy voice : UNFRIENDLY, hostile, forbidding; cold, cool, chilly, frigid, frosty, glacial, gelid; haughty, stern, hard.