manufacturer vs unskilled

manufacturer

noun
  • A person or company that manufactures. 

unskilled

adj
  • Of a person or workforce: not having a skill or technical training. 

  • Of a job: not requiring skill or training. 

  • Of a made object: inexpertly made or showing a lack of skill. 

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