arid vs cardboard

arid

adj
  • Very dry. 

  • Devoid of value. 

  • Describing a very dry climate. Typically defined as less than 25 cm or 10 inches of rainfall annually. 

cardboard

adj
  • Made of or resembling cardboard; (figurative) flat or flavorless. 

noun
  • A wood-based material resembling heavy paper, used in the manufacture of boxes, cartons and signs. 

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