hardness

nouns

the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
hardness
is derived from
hard
antonym
softness
is a type of (narrower)
the property of holding together and retaining its shape
"wool has more body than rayon"; "when the dough has enough consistency it is ready to bake"
body, consistence, consistency, eubstance
is an attribute of
resisting weight or pressure
hard
is an attribute of
yielding readily to pressure or weight
soft
a quality of water that contains dissolved mineral salts that prevent soap from lathering
"the costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present"
hardness
is a type of (narrower)
an essential and distinguishing attribute of something or someone
"the quality of mercy is not strained"--Shakespeare
quality
devoid of passion or feeling; hardheartedness
callosity, callousness, hardness, insensibility, unfeelingness
is derived from
hard
the quality of being difficult to do
"he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail"
hardness, ruggedness
is derived from
hard
is derived from
hard
excessive sternness
"severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
hardness, harshness, inclemency, rigor, rigorousness, rigour, rigourousness, severeness, severity, stiffness
is derived from
hard