disagreeable vs rueful

disagreeable

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

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

rueful

adj
  • Causing, feeling, or expressing regret or sorrow, especially in a wry or humorous way. 

  • Inspiring pity or compassion. 

  • Bad; woeful; deplorable. 

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