competent vs trained

competent

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

  • Resistant to deformation or flow. 

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

  • Adequate for the purpose. 

  • Permeable to foreign DNA. 

trained

adj
  • Having undergone a course of training (sometimes in combination). 

  • Manipulated in shape or habit. 

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