subnormal vs unhappy

subnormal

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. 

adj
  • denormal 

  • Less than normal. 

unhappy

noun
  • An individual who is not happy. 

adj
  • Not happy; sad. 

  • Not satisfied; unsatisfied. 

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