Out of thin air Definition 1 of 2Pro Tip 1/3Magic Analogies Often used to describe events that happen so unexpectedly they seem magical or supernatural. The solution to the problem appeared out of thin air. Pro Tip 2/3No Trace Implies that something has no clear origin or cause, making it surprising and sometimes shocking. A new challenger stepped out of thin air to compete. Pro Tip 3/3Emphasis on Suddenness Stresses the lack of warning or preparation for the event or object that appears. I turned the corner and out of thin air, a parade appeared.