nonnegotiable

alternative non-negotiable

1. not comparableNot negotiable; not subject to negotiation.

   For the hypermaterialistic and chronically adolescent Nancy, what was nonnegotiable was control, the power to sculpture her world to gratify her ever-sharpening appetites and desires.

   2007 December 16, Bob Shacochis, “Here Comes the Bride”, in The New York Times

   1. not comparableNot subject to bargaining or haggling.
   2. not comparableNot redeemable for money or other assets.

plural nonnegotiables · alternative non-negotiable

1. Something that is not negotiable.

   Near-synonym: deal breaker

   1 more example

   “It is only once you start looking at houses that you realize what you do and don’t like, and what your negotiables and nonnegotiables are,” Ms. Wexler said.

   2007 August 26, Joyce Cohen, “No Longer Boxed In”, in The New York Times

   Synonyms: sine qua non, deal breaker