conscientious vs venal

conscientious

adj
  • Thorough, careful, or vigilant in one’s task performance. 

  • Influenced by conscience; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong (said of a person). 

venal

adj
  • Capable of being bought (of a person); willing to take bribes. 

  • Of a position, privilege etc.: available for purchase rather than assigned on merit. 

  • Venous; pertaining to veins. 

  • Corrupt, mercenary. 

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