icyEnglishOxford Dictionary of Englishicy /ˈʌɪsi / ▸ adjective ( icier, iciest) covered with or consisting of ice: there were icy patches on the roads. ▪ very cold: an icy wind. ▪ very unfriendly; hostile: her voice was icy. – DERIVATIVES icily /ˈʌɪsɪli / adverb iciness /ˈʌɪsinɪs / noun