Fatal is a synonym of Inevitable. Inevitable is the opposite of Possible. Possible is the opposite of Actual. Actual is the opposite of Future. 
Example is a synonym of Representative. Representative is a synonym of Deputy. 
Fatal <--Synonym--> Inevitable <--Antonym--> Possible <--Antonym--> Actual <--Antonym--> Future 
Example <--Synonym--> Representative <--Synonym--> Deputy 