The term 'causing goose bumps' can be described by the crossword solutions of CREEPY, EERIE, SCARY, FEAR, TINGLE, and eerily. These words all describe a feeling of unease or dread that can cause a person to experience physical reactions such as goose bumps. CREEPY is an adjective used to describe something that is strange and unsettling. EERIE is another adjective used to describe something that is mysterious and frightening. SCARY is an adjective used to describe something that is frightening or intimidating. FEAR is a noun used to describe a feeling of anxiety or dread. TINGLE is a verb used to describe a feeling of excitement or anticipation. Lastly, eerily is an adverb used to describe something that is strange and unsettling. All of these words can be used to describe the feeling of unease that can cause goose bumps.