Falsifiability is the ability of something to be proven false. A non falsifiable statement would be, "There is a green lizard sitting in a rocking chair on the fourth largest moon of Jupiter." This statement is not falsifiable in that it cannot be proven false because it cannot be verified or denied. Jesus' resurrection was falsifiable in that all the critics had to do was produce the body, but they did not. Falsifiability, generally, is a test of the validity of a belief or occurrence. Something that is not falsifiable can be said to be untrue since it cannot be confirmed or denied.