You searched for: “unpredictableness
unpredictableness (s) (noun) (no plural)
That which is incapable of being known in advance: "The unpredictableness of the mud from the high hill sliding down on the houses made it impossible for authorities to warn the people in time resulted in destruction of homes and several deaths of residents in that area."
This entry is located in the following unit: dic-, dict- (page 9)