definite vs on the fence

definite

adj
  • Having distinct limits. 

  • Designating an identified or immediately identifiable person or thing, or group of persons or things 

  • Free from any doubt. 

  • Determined; resolved; decided. 

noun
  • A word or phrase that designates a specified or identified person or entity. 

on the fence

prep
  • undecided; wavering in one's opinion 

  • Used other than figuratively or idiomatically: see on, the, fence. 

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