comfortable vs unsheltered

comfortable

adj
  • Amply sufficient, satisfactory. 

  • In a state of comfort and content. 

  • Providing physical comfort and ease; agreeable. 

  • Confident; relaxed; not worried about someone or something. 

noun
  • A stuffed or quilted coverlet for a bed; a comforter. 

unsheltered

adj
  • Without shelter; exposed. 

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