gelidEnglishOxford English Thesaurusgelid adjective the gelid green spikes of the glacier: frozen, freezing, icy, ice-cold, arctic, glacial, polar, frosty, wintry, snowy, bitterly cold, sub-zero, chilly, Siberian, hyperborean, hyperboreal; British, informal Baltic; rare algid. ▷antonyms hot.gelid Oxford Dictionary of English