roily vs violent

roily

adj
  • turbulent 

  • muddy, cloudy (having lots of sediment) 

violent

adj
  • Intensely vivid. 

  • Produced or effected by force; not spontaneous; unnatural. 

  • Involving extreme force or motion. 

  • Involving physical conflict. 

  • Likely to use physical force. 

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