enterprising vs unambitious

enterprising

noun
  • The undertaking of an enterprise; purposeful activity; doings. 

adj
  • Displaying bravery and daring in attempting some task. 

  • Very able and ingenious in business dealings or social advancement. 

unambitious

adj
  • having little ambition for success or achievement 

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