bashful vs bush league

bashful

adj
  • Shy; not liking to be noticed; socially timid. 

  • Indicating bashfulness. 

bush league

adj
  • Amateurish, unprofessional, unpolished, juvenile. 

  • Of inferior quality. 

noun
  • A professional sports association at the lower levels of minor league organization. 

  • A low-ranking or inferior level among groups, professions, organizations, etc. 

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