noun.
The state of being fixed; stability; firmness; steadfastness; firm coherence: as, a fixedness in religion or politics; fixedness of opinion on any subject; the fixedness of gold.
the GNU version of the Collaborative International Dictionary of English
noun.
The state or quality of being fixed; stability; steadfastness.
noun.
The quality of a body which resists evaporation or volatilization by heat; solidity; cohesion of parts.