disagreeable vs painless

disagreeable

noun
  • Something or someone displeasing; anything that is disagreeable. 

adj
  • Causing repugnance; unpleasant to the feelings or senses; displeasing. 

painless

adj
  • Free from pain; without pain or trouble. 

  • Not difficult; easy. 

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