friendly vs petty

friendly

adj
  • Promoting the good of any person; favourable; propitious. 

  • Generally warm, approachable and easy to relate with in character. 

  • Inviting, characteristic of friendliness. 

  • Without any hostility. 

  • Of or pertaining to friendlies (friendly noun sense 2, below). Also applied to other bipolar confrontations, such as team sports. 

  • Compatible with, or not damaging to (the compounded noun). 

  • Being or relating to two or more natural numbers with a common abundancy. 

  • Having an easy or accepting relationship with something. 

noun
  • A person or entity on the same side in a conflict. 

  • A game which is of no consequence in terms of ranking, betting etc. 

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. 

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