Absolute vs nonnegotiable

Absolute

noun
  • That which is totally unconditioned, unrestricted, pure, perfect, or complete; that which can be thought of without relation to others. 

nonnegotiable

noun
  • Something that is not negotiable. 

adj
  • Not negotiable; not subject to negotiation. 

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