The crossword solution for the term INTENSELY COLD is ICY, which is a three-letter word. ICY is an adjective used to describe something that is extremely cold, often to the point of being uncomfortable or dangerous. It is often used to describe weather conditions, such as a cold winter day or a snowstorm. It can also be used to describe a person's attitude or demeanor, such as when someone is described as being 'ICY cold.'