paltry vs rewarding

paltry

adj
  • Trashy, trivial, of little value. 

  • Of little monetary worth. 

  • Despicable; contemptibly unimportant. 

rewarding

adj
  • Giving or resulting in reward or satisfaction. 

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