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severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness, stiffness | excessive sternness | |
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hardness, ruggedness | the quality of being difficult to do | |
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solidity, solidness, hardness, consistency, compactness, density, fullness, massiveness, strength, soundness | the consistency of a solid | |
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hardness | a quality of water that contains dissolved mineral salts that prevent soap from lathering | |
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callousness, hardness, unfeelingness, callosity, insensibility | devoid of passion or feeling; hardheartedness | |
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hardness | the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale |