unfeasibility

Either the initial sighting was a mistake, and subsequent sightings were the result of mass panic or confirmation bias, as proved by the technical unfeasibility of what was described.

Faced with playing a football season during a pandemic and convinced of the unfeasibility of a bubble system, the NFL this summer created perhaps the most sprawling, comprehensive testing program in sports.

She was not able to get over the unfeasibility of her marriage, and has not been able to extricate herself from this trauma.