hardness

Primary Meanings of hardness

1.
n
the quality of being difficult to do
2.
n
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
3.
n
a quality of water that contains dissolved mineral salts that prevent soap from lathering
Full Definitions of hardness
1

n the quality of being difficult to do

“he assigned a series of problems of increasing hardness
Synonyms:
ruggedness
Type of:
difficultness, difficulty
the quality of being difficult
2

n the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale

Antonyms:
softness
the property of giving little resistance to pressure and being easily cut or molded
Types:
firmness
the property of being unyielding to the touch
incompressibility
the property of being incompressible
Type of:
body, consistence, consistency, eubstance
the property of holding together and retaining its shape

n devoid of passion or feeling; hardheartedness

Synonyms:
callosity, callousness, insensibility, unfeelingness
Types:
dullness
lack of sensibility
Type of:
insensitiveness, insensitivity
the inability to respond to affective changes in your interpersonal environment

n excessive sternness

3

n 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”
Type of:
quality
an essential and distinguishing attribute of something or someone

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