harsh vs tenuous

harsh

adj
  • Severe or cruel. 

  • Unpleasantly rough to the touch or other senses. 

verb
  • To negatively criticize. 

  • To put a damper on (a mood). 

tenuous

adj
  • Insubstantial. 

  • Thin in substance or consistency. 

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