aborted vs undeveloped

aborted

adj
  • Rendered abortive or sterile; undeveloped. 

  • Brought forth prematurely. 

  • Checked in normal development at an early stage. 

undeveloped

adj
  • not developed or used 

  • not built on, unbuilt; not ready for building on 

  • lagging behind others, especially in economic or social matters 

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