'Firmness' definitions:

Definition of 'firmness'

From: WordNet
noun
The muscle tone of healthy tissue; "his muscular firmness" [syn: firmness, soundness] [ant: unsoundness]
noun
The trait of being resolute; "his resoluteness carried him through the battle"; "it was his unshakeable resolution to finish the work" [syn: resoluteness, firmness, firmness of purpose, resolve, resolution] [ant: irresoluteness, irresolution]
noun
The property of being unyielding to the touch
noun
The quality of being steady or securely and immovably fixed in place [syn: steadiness, firmness] [ant: ricketiness, unsteadiness]

Definition of 'Firmness'

From: GCIDE
  • Firmness \Firm"ness\, n. The state or quality of being firm.
  • Syn: Firmness, Constancy.
  • Usage: Firmness belongs to the will, and constancy to the affections and principles; the former prevents us from yielding, and the latter from fluctuating. Without firmness a man has no character; "without constancy," says Addison, "there is neither love, friendship, nor virtue in the world." [1913 Webster]