disagreeable vs pissant

disagreeable

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

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

pissant

noun
  • A person seemingly incapable of focusing on anything but the trivial, especially in the sense of trivial or irrelevant criticism. 

  • An insignificant person. 

  • A person who adheres strictly to a rule or policy despite current circumstances. 

  • An ant. 

adj
  • Insignificant or unimportant. 

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