The term 'COLD AND ICY' can be summarized by two crossword solutions: GELID (5 letters) and GLACIAL (7 letters). GELID is an adjective meaning 'extremely cold, ' while GLACIAL is an adjective meaning 'like a glacier; extremely cold and slow-moving.' Both words are used to describe extreme coldness, but GELID is more often used to describe the temperature of something, while GLACIAL is more often used to describe the atmosphere or environment.