dampener vs disagreeable

dampener

noun
  • A discouraging event or remark. 

  • A device that moistens or dampens something. 

disagreeable

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

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

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