Firmness is a related term of gameness.
As nouns the difference between firmness and gameness
is that firmness is the state of being firm; strength; permanence; stability; hardness; resolution while gameness is the quality of being game; bravery, courage or pluck.
firmness
English
Noun
The state of being firm; strength; permanence; stability; hardness; resolution.
References
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gameness
English
Noun
(-)
The quality of being game; bravery, courage or pluck