Confoundable

"Barriers like this web have been manifested by a rather chaotic magic — we call these "Confoundables"."

- Harry Potter

The term Confoundable was used by the Ministry of Magic to refer to a piece of chaotic magic that, during the Calamity, stuck a displaced wizarding person, object, creature, or even memory somewhere in a public Muggle place, thus threatening to expose the wizarding world and in potential serious breach of the International Statute of Wizarding Secrecy.

The Statute of Secrecy Task Force, created as a response to the Calamity, was tasked to investigate and contain this threat and prevent outbreaks of magic from being noticed by Muggles: the way to do this was to banish all Confoundables in order to retrieve all Foundables.