competent vs incompetent

competent

adj
  • Resistant to deformation or flow. 

  • Having sufficient skill, knowledge, ability, or qualifications. 

  • Having jurisdiction or authority over a particular issue or question. 

  • Adequate for the purpose. 

  • Permeable to foreign DNA. 

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. 

noun
  • A person who is incompetent. 

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