justness

The quality of being just; conformity to truth, propriety, accuracy, exactness, and the like; justice; reasonableness; fairness; equity; as, justness of proportions; the justness of a description or representation; the justness of a cause.

In value the satisfaction I had in seeing it represented with all the justness and gracefulness of action.

Note: Justness is properly applied to things, and justice to persons; but the distinction is not always observed.

Syn. -- Accuracy; exactness; correctness; propriety; fitness; reasonableness; equity; uprightness; justice.

noun

The quality or state of being just and unbiased: detachment, disinterest, disinterestedness, dispassion, dispassionateness, equitableness, fair-mindedness, fairness, impartiality, impartialness, justice, nonpartisanship, objectiveness, objectivity. See fair/unfair.

The noun has 2 meanings:

Meaning #1: conformity with some esthetic standard of correctness or propriety
  Synonyms: rightness, nicety

Meaning #2: the quality of being just or fair
  Synonym: justice