define confusion
Medical Definition of CONFUSION. : disturbance of consciousness characterized by inability to engage in orderly thought or by lack of power to distinguish, choose, or act decisively. â conÂ·fuÂ·sionÂ·al \-zhnÉl, -zhÉn-Él\ adjective.ords from the Latin fundere have something to do with pouring. To re fund is to pour someone's money back to her or him. Con fus ion exists when too many things are poured together so that they become uncertain and unclear.