rare vs subnormal

rare

adj
  • Very uncommon; scarce. 

  • Thin; of low density. 

  • Particularly of meat, especially beefsteak: cooked very lightly, so the meat is still red. 

  • Good; enjoyable. 

noun
  • A scarce or uncommon item. 

verb
  • To rear, bring up, raise. 

  • To rear, rise up, start backwards. 

subnormal

adj
  • Less than normal. 

  • denormal 

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 rare and subnormal occurred in a corpus of books? (source: Google Ngram Viewer )