The term 'goosebump-causing' can be described by two crossword solutions: EERIE (5 letters) and CREEPY (6 letters). EERIE is an adjective that describes something as strange, mysterious, or frightening. It is often used to describe a feeling of uneasiness or fear. CREEPY is also an adjective that describes something as strange, frightening, or causing a feeling of uneasiness. It is often used to describe something that is unsettling or causes a feeling of dread. Both words are commonly used to describe something that is spooky or goosebump-causing.