Definition of Hardness

1. Noun. The property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale.

Generic synonyms: Body, Consistence, Consistency, Eubstance
Specialized synonyms: Firmness, Incompressibility
Attributes: Hard, Soft
Derivative terms: Hard
Antonyms: Softness

2. Noun. 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"
Generic synonyms: Quality

3. Noun. Devoid of passion or feeling; hardheartedness.
Exact synonyms: Callosity, Callousness, Insensibility, Unfeelingness
Generic synonyms: Insensitiveness, Insensitivity
Specialized synonyms: Dullness
Derivative terms: Callous, Callous, Hard, Insensible, Unfeeling

4. Noun. The quality of being difficult to do. "The ruggedness of his exams caused half the class to fail"
Exact synonyms: Ruggedness
Generic synonyms: Difficultness, Difficulty
Derivative terms: Hard, Hard, Rugged

5. Noun. Excessive sternness. "The rigors of boot camp"

Definition of Hardness

1. n. The quality or state of being hard, literally or figuratively.

Definition of Hardness

1. Noun. The quality of being hard. ¹

2. Noun. An instance of this quality; hardship. ¹

¹ Source: wiktionary.com

Definition of Hardness

1. the state of being hard [n -ES]

Medical Definition of Hardness

1. Total concentration of calcium and magnesium ions, expressed as the equivalent concentration (mg/L) of calcium carbonate. Hard water is water that contains lots of calcium carbonate and other minerals. (09 Oct 1997)

Lexicographical Neighbors of Hardness

hardinesses
hardish
hardiship
hardkill
hardline
hardliner
hardliners
hardlines
hardly
hardly a(a)
hardman
hardmen
hardmouthed
hardness (current term)
hardness scale
hardnesses
hardnose
hardnosed
hardnoses
hardock
hardocks
hardoke
hardokes
hardons
hardpack
hardpacks
hardpan
hardpans

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