barren vs subnormal

barren

adj
  • Bleak. 

  • Unable to bear children; sterile. 

  • Of poor fertility, infertile; not producing vegetation. 

  • Mentally dull; stupid. 

  • Unproductive; fruitless; unprofitable; empty. 

noun
  • An area of low fertility and habitation, a desolate place. 

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. 

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