► 動詞有り得る  [(3)ありうる]  [liter]    
meaning:  possible  rank: 2☆ 
彼等が
勝つことは十
分有り得る ⇨ It is very possible that they win
有り得る  [(3)ありえる]  [
有り得ない]  [liter]    
meaning:  possible  rank: 2☆ そんなことは有り得ない ⇨ That is impossible. That cannot happen. That cannot be
More examples:- 啓蒙するという概念は危険ですら有り得る ⇨ The concept of enlightening can even be dangerous