coarse vs subnormal

coarse

adj
  • Of inferior quality. 

  • Composed of large particles. 

  • Lacking refinement, taste or delicacy. 

  • With a rough texture; not smooth. 

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