monogamous vs unwed

monogamous

adj
  • Being married to one person at a time. 

  • Monogamic; having a simple flower with united anthers. 

  • Having only one sexual partner at a time. 

unwed

adj
  • Not married. 

noun
  • One who is not married; a bachelor or a spinster. 

  • Should unweds living together receive the same social benefits as married couples? 

verb
  • To annul the marriage of. 

  • To separate. 

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