intentive vs thoughtful

intentive

adj
  • Paying attention; attentive, heedful. 

  • Expressing intent. 

  • Intent (of the mind, thoughts etc.). 

thoughtful

adj
  • Demonstrating thought or careful consideration. 

  • Demonstrating kindness or consideration for others. 

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