acerbic vs derisive

acerbic

adj
  • Tasting sour or bitter. 

  • Sharp, harsh, biting. 

derisive

adj
  • Expressing or characterized by derision; mocking; ridiculing. 

  • Deserving or provoking derision or ridicule. 

noun
  • A derisive remark. 

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