enchanting vs soporific

enchanting

adj
  • Having the ability to enchant; charming, delightful. 

noun
  • An act of enchantment. 

soporific

noun
  • Something boring or dull. 

  • Something inducing sleep, especially a drug. 

adj
  • Boring, dull. 

  • Tending to induce sleep. 

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