English noun: hardness
|1.||hardness (attribute) the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale|
|Broader (hypernym)||body, consistence, consistency, eubstance|
|Narrower (hyponym)||firmness, incompressibility|
|2.||hardness (attribute) a quality of water that contains dissolved mineral salts that prevent soap from lathering|
|Samples||The costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present.|
|3.||hardness (attribute) devoid of passion or feeling; hardheartedness|
|Synonyms||callosity, callousness, insensibility, unfeelingness|
|Broader (hypernym)||insensitiveness, insensitivity|
|4.||hardness (attribute) the quality of being difficult to do|
|Samples||He assigned a series of problems of increasing hardness.|
The ruggedness of his exams caused half the class to fail.
|Broader (hypernym)||difficultness, difficulty|
|5.||hardness (attribute) excessive sternness|
|Samples||Severity of character.|
The harshness of his punishment was inhuman.
The rigors of boot camp.
|Synonyms||harshness, inclemency, rigor, rigorousness, rigour, rigourousness, severeness, severity, stiffness|
|Broader (hypernym)||sternness, strictness|