squally vs windless

squally

adj
  • Characterized by squalls, or sudden violent bursts of wind; gusty. 

  • Not equally good throughout; not uniform; uneven; faulty. 

  • Producing or characteristic of loud wails. 

windless

adj
  • Devoid of wind; calm. 

  • Out of breath. 

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