careless vs provident

careless

adj
  • Not concerned or worried (about). 

  • Not giving sufficient attention or thought, especially concerning the avoidance of harm or mistakes. 

provident

adj
  • Providing (for someone’s needs). 

  • Possessing, exercising, or demonstrating great care and consideration for the future. 

  • Showing care in the use of something (especially money or provisions), so as to avoid wasting it. 

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