derisive vs polite

derisive

adj
  • Deserving or provoking derision or ridicule. 

  • Expressing or characterized by derision; mocking; ridiculing. 

noun
  • A derisive remark. 

polite

adj
  • Well-mannered, civilized. 

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