inexact vs way off

inexact

adj
  • Imperfectly conforming; exceeding or falling short in some respect. 

  • having a path-dependent integral 

  • Imprecisely or indefinitely conceived or stated. 

way off

adj
  • very wrong, not even close 

  • remote; far; distant (in space) 

  • remote; far in the future 

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