If you say that something or someone is creepy, you mean they make you feel very nervous or frightened . Something is creepy if it feels like tiny things are crawling on you . The sensation of a spider on your arm is creepy. Ladybugs are pretty, but it still feels creepy when they crawl across your hand. CREEPY definition: 1. strange or unnatural and making you feel frightened: 2. unpleasant and making you feel…. Learn more. The word 'creepy' has been commonly used to describe experiences, people, or places that invoke discomfort, fear, or dread . It is often associated with horror or supernatural genres but can be used to describe real-life situations that feel eerie or unsettling.