Creepiness is the state of being creepy, or causing an unpleasant feeling of fear or unease. A person who exhibits creepy behaviour is called a creep. Certain traits or hobbies may make people seem creepy to others. The internet has been described as increasingly creepy. Adam Kotsko has compared the modern conception of creepiness to the Freudian concept of unheimlich. The term has also been used to describe paranormal or supernatural phenomena.