passable vs unmanageable

passable

adj
  • able to "pass", or be accepted as a member of a race, sex or other group to which society would not otherwise regard one as belonging. 

  • That may be passed or traversed. 

  • Tolerable; adequate; no more than satisfactory. 

unmanageable

adj
  • Not manageable; not readily submitting to handling or management; not easily restrained, governed, or directed 

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