petty vs productive

petty

adj
  • Of persons or their behaviour: marked by or reflective of undesirably limited interests, sympathies, or views; begrudging, selfish, small-minded; also, preoccupied with subjects having little or no importance and not mindful of broader concerns. 

  • Of or relating to the lowest grade or level of school; junior, primary. 

  • Little or small in size. 

  • Having little or no importance. 

  • Secondary in importance or rank; minor, subordinate. 

noun
  • An outbuilding used as a lavatory; an outhouse, a privy. 

  • A class or school for young schoolboys. 

productive

adj
  • Of, or relating to the creation of goods or services. 

  • Of a cough, producing mucus or sputum from the respiratory tract. 

  • Of inflammation, producing new tissue. 

  • Capable of producing something, especially in abundance; fertile. 

  • Consistently applicable to any of an open set of words. 

  • Yielding good or useful results; constructive. 

  • A type of set of natural numbers, related to mathematical logic. 

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