adulterine vs not true to

adulterine

adj

  • Born of adultery. 

  • Illegal; unlicensed. 

  • Spurious; due to adulteration. 

  • Pertaining to adultery. 

noun

  • One born of an adulterous union. 

not true to

How often have the words adulterine and not true to occurred in a corpus of books? (source: Google Ngram Viewer )