Source : Webster's Revised Unabridged Dictionary (1913)

Fixedness \Fix"ed*ness\, n.
   1. The state or quality of being fixed; stability;
      steadfastness.

   2. The quality of a body which resists evaporation or
      volatilization by heat; solidity; cohesion of parts; as,
      the fixedness of gold.

Source : WordNet®

fixedness
     n 1: remaining in place [syn: {stationariness}, {immobility}]
     2: the quality of being fixed in place [syn: {fastness}, {fixity},
         {fixture}, {secureness}]
     3: the quality of being fixed and unchangeable; "the fixedness
        of his gaze upset her" [syn: {unalterability}]