adventurous vs courageous

adventurous

adj
  • Inclined to adventure; willing to take risks; prone to embark on hazardous enterprises; daring. 

  • Full of risks; risky; liable to be in danger; requiring courage; rash. 

courageous

adj
  • Of a person, displaying or possessing courage. 

  • Of an action, that requires courage. 

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