CREEPY definition: 1. strange or unnatural and making you feel frightened: 2. unpleasant and making you feel…. Learn more. The meaning of CREEPY is producing a nervous shivery apprehension; also : eerie. How to use creepy in a sentence. 1. Of or producing a sensation of uneasiness or fear , as of things crawling on one's skin: a creepy feeling; a creepy story. 2. Annoyingly unpleasant; repulsive: the creepy kids next door. 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.