a priori vs neutral

a priori

adj
  • Based on hypothesis and theory rather than experiment or empirical evidence. 

  • Presumed without analysis. 

  • Self-evident, intuitively obvious. 

  • Developed entirely from scratch, without deriving it from existing languages. 

adv
  • In a way based on theoretical deduction rather than empirical observation. 

neutral

adj
  • Favouring neither the supporting nor opposing viewpoint of a topic of debate; unbiased. 

  • Having no sex; neuter. 

  • Having no obvious colour; gray 

  • Neither positive nor negative. 

  • Not taking sides in a conflict such as war; nonaligned. 

  • Neither beneficial nor harmful. 

  • Having a pH of or near 7, neither acidic nor alkaline. 

  • Neither positive nor negative; possessing no charge or equivalent positive and negative charge such that there is no imbalance. 

noun
  • A neutral hue. 

  • The position of a set of gears in which power cannot be transmitted to the drive mechanism. 

  • An individual or entity serving as an arbitrator or adjudicator. 

  • A person who takes no side in a dispute. 

  • An electrical terminal or conductor which has zero or close to zero voltage with respect to the ground. 

  • A nonaligned state, or a member of such a state. 

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