aberrant vs subnormal

aberrant

noun
  • A person or object that deviates from the rest of a group. 

  • A group, individual, or structure that deviates from the usual or natural type, especially with an atypical chromosome number. 

adj
  • Differing from the norm. 

  • Straying from the right way; deviating from morality or truth. 

  • Deviating from the ordinary or natural type; exceptional; abnormal. 

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. 

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