sardonic vs severe

sardonic

adj
  • Scornfully mocking or cynical. 

  • Disdainfully or ironically humorous. 

severe

adj
  • Strict or harsh. 

  • Very bad or intense. 

  • Sober, plain in appearance, austere. 

How often have the words sardonic and severe occurred in a corpus of books? (source: Google Ngram Viewer )