► 形容動詞残忍  [ざんにん]    
meaning:  cruel  rank: 3☆ 残忍な
独裁者 ⇨ A cruel, brutal, sadistic, dictator  
(☛ About people who harm others cruelly)More examples:- 残忍極まる犯罪 ⇨ A crime with extreme cruelty
 - 血が通った人間とは思えない残忍さ ⇨ The cruelty you cannot believe to belong to a human with blood flowing