The term 'blood-chilling' can be described as EERIE, which is a five-letter word. EERIE is an adjective that is used to describe something that is strange and frightening. It is often used to describe a feeling of dread or fear. Blood-chilling is a phrase that is used to describe something that is extremely frightening or horrifying. It is often used to describe a situation or experience that is so frightening that it causes one's blood to run cold.