firmness; hardness; stiffness; honesty
この肉は固さがちょうどいい。
The firmness of this meat is just right.
地盤の固さを調べてから建てた方がいい。
It's better to build after checking the firmness of the ground.
パンの固さは焼き時間で変わる。
The hardness of bread changes with baking time.