eristic vs incompetent

eristic

noun
  • One who makes specious arguments; one who is disputatious. 

  • A type of dialogue or argument where the participants do not have any reasonable goal. The aim is to argue for the sake of conflict, and often to see who can yell the loudest. 

adj
  • Provoking strife, controversy or discord. 

incompetent

noun
  • A person who is incompetent. 

adj
  • Not resistant to deformation or flow. 

  • Unable to make rational decisions; insane or otherwise cognitively impaired. 

  • Opening too early during pregnancy, resulting in miscarriage or premature birth. 

  • Unskilled; lacking the degree of ability that would normally be expected. 

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