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English to English noun
| 1 |
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale | source: wordnet30
| 2 |
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
source: wordnet30
| 3 |
devoid of passion or feeling; hardheartedness | source: wordnet30
| 4 |
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
source: wordnet30 Example:
• severity of character
• the harshness of his punishment was inhuman
• the rigors of boot camp
source: wordnet30
| 6 |
The quality or state of being hard, literally or figuratively. | source: webster1913
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