hardness

As a noun hardness

is the quality of being hard.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As nouns the difference between hardness and darkness

is that hardness is the quality of being hard while darkness is (lb) the state of being dark; lack of light.

As nouns the difference between hardness and induration

is that hardness is the quality of being hard while induration is hardness.

As nouns the difference between rigidness and hardness

is that rigidness is rigidity while hardness is the quality of being hard.

As an adjective rigid

is rigid.

As a noun hardness is

the quality of being hard.

Hardness is a related term of stoutness.

As nouns the difference between hardness and stoutness

is that hardness is the quality of being hard while stoutness is (usually|uncountable) a state or quality of being stout.

Hardness is a related term of brawniness.

As nouns the difference between hardness and brawniness

is that hardness is the quality of being hard while brawniness is the state of being brawny or having brawn.

Hardness is a related term of authority.

As nouns the difference between hardness and authority

is that hardness is the quality of being hard while authority is (label) the power to enforce rules or give orders.

Hardness is a related term of support.

As nouns the difference between hardness and support

is that hardness is the quality of being hard while support is something which supports often used attributively, as a complement or supplement to.

As a verb support is

(senseid)to keep from falling.

Hardness is a related term of spirit.

As nouns the difference between hardness and spirit

is that hardness is the quality of being hard while spirit is spirit (alcohol).