subnormal vs unbroken

subnormal

adj
  • denormal 

  • Less than normal. 

noun
  • A person whose abilities are less than normal. 

  • That part of the axis of a curved line which is intercepted between the ordinate and the normal. 

unbroken

adj
  • Whole, not divided into parts. 

  • Of a horse, not tamed. 

  • Continuous, without interruption. 

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