counterclockwise vs countersunwise

counterclockwise

adv

  • In the direction of rotation opposite from clockwise. 

adj

  • Moving or located in the direction of rotation opposite from clockwise. 

countersunwise

adv

  • anticlockwise 

adj

  • anticlockwise 

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