1. causing a sensation of horror or dread; making one's hair stand on end; terrifying or gruesome
Usage: formal or literary; often used to describe something shocking or deeply disturbing

Examples

• The horripilating details of the crime scene were too disturbing to describe.
• She found the old horror film absolutely horripilating.
• The horripilating screams echoed through the abandoned mansion.
• His horripilating account of the accident left everyone in shock.
• The horripilating mask gave the costume an authentically frightening appearance.
• That horripilating story about the shipwreck kept me awake all night.