disagreeable vs ungentle

disagreeable

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

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

ungentle

adj
  • Showing a lack of gentleness, kindness or compassion. 

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