guarded vs unsheltered

guarded

adj
  • Cautious; restrained. 

  • Watched over; supervised. 

  • When the practitioner formulating the opinion does not have enough information to know, or to foretell, what the outcome may be. 

unsheltered

adj
  • Without shelter; exposed. 

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