unfixed vs unflappable

unfixed

adj
  • Not fixated or fixed; moving or changing freely 

  • Not fixed; not corrected. 

  • Not fraudulently prearranged. 

unflappable

adj
  • Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily. 

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