stark vs stiff as a board

stark

adj
  • Stiff, rigid. 

  • Naked. 

  • Complete, absolute, full. 

  • Severe; violent; fierce (now usually in describing the weather). 

  • Plain in appearance; barren, desolate. 

adv
  • starkly; entirely, absolutely 

stiff as a board

adj
  • Very stiff. 

How often have the words stark and stiff as a board occurred in a corpus of books? (source: Google Ngram Viewer )