affable vs ill-natured

affable

adj
  • Receiving others kindly and conversing with them in a free and friendly manner; friendly, courteous, sociable. 

  • Mild; benign. 

ill-natured

adj
  • Synonym of malevolent: wishing bad upon others. 

  • Synonym of bad-tempered: easily or characteristically angered. 

How often have the words affable and ill-natured occurred in a corpus of books? (source: Google Ngram Viewer )