icyEnglishOxford English Thesaurusicy adjective 1 icy roads: frozen, frozen over, iced over, ice-bound, ice-covered, iced up, frosty, frosted, glassy, like a sheet of glass, slippery; informal slippy; literary rimy. 2 an icy wind: freezing, frigid, chill, chilly, chilling, frosty, biting, bitter, raw, arctic, glacial, Siberian, polar, gelid; British, informal Baltic. ▷antonyms hot, warm. 3 ‘What did you say?’ said an icy voice: unfriendly, unwelcoming, inhospitable, hostile, forbidding; cold, cool, chilly, frigid, frosty, glacial, wintry; stiff, aloof, distant, unsympathetic, disdainful, haughty, stony, stern, hard, fierce; rare gelid. ▷antonyms friendly.icy Oxford Dictionary of English