despairing vs nonpositive

despairing

adj

  • Feeling, expressing, or caused by despair; hopeless. 

noun

  • A mood or display of despair. 

nonpositive

adj

  • Not positive; either zero or negative. 

  • Not positive. 

noun

  • Any value that is not positive. 

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