nonpositive vs repulse

nonpositive

noun
  • Any value that is not positive. 

adj
  • Not positive; either zero or negative. 

  • Not positive. 

repulse

noun
  • refusal, rejection or repulsion 

  • the act of repulsing or the state of being repulsed 

verb
  • To repel or drive back. 

  • To reject or rebuff. 

  • To cause revulsion in. 

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