definition of
firmness

[1] #1 firmness n. [soundness] the muscle tone of healthy tissue; "his muscular firmness". wn

[2] #2 firmness n. [resoluteness, firmness of purpose, resolve, resolution] the trait of being resolute; "his resoluteness carried him through the battle"; "it was his unshakeable resolution to finish the work". wn

[3] #3 firmness n. the property of being unyielding to the touch. wn

[4] #4 firmness n. [steadiness] the quality of being steady or securely and immovably fixed in place. wn