unformed vs well defined

unformed

adj
  • Not well developed. 

  • Not formed or made. 

  • Not having a definite form; shapeless; amorphous. 

  • Not grouped into any constellation. 

  • Decomposed, or resolved into parts; having the form destroyed. 

well defined

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