amorphous vs unformed

amorphous

adj
  • Lacking a definite form or clear shape. 

  • Being without definite character or nature. 

  • In the non-crystalline solid state of a typically crystalline solid. 

  • Lacking organization or unity. 

  • Infinite and not the disjoint union of two infinite subsets. 

unformed

adj
  • Not having a definite form; shapeless; amorphous. 

  • Not well developed. 

  • Not formed or made. 

  • Not grouped into any constellation. 

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

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