ill-looking vs terrible

ill-looking

adj
  • of evil or sinister appearance 

  • having an unhealthy appearance 

  • unattractive; ugly 

terrible

adj
  • Dreadful; causing terror, alarm and fear; awesome 

  • Intense; extreme in degree or extent. 

  • Formidable, powerful. 

  • Unpleasant; disagreeable. 

  • Very bad; lousy. 

adv
  • In a terrible way; to a terrible extent; terribly; awfully. 

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