Hardness

noun

'hɑrdnɪs

Noun

the quality of being difficult to do
“he assigned a series of problems of increasing hardness”
Similar:Ruggedness
Type of:DifficultyDifficultness
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
devoid of passion or feeling; hardheartedness
Similar:CallosityCallousnessInsensibilityUnfeelingness
Type of:InsensitivenessInsensitivity
excessive sternness
Similar:HarshnessInclemencyRigorRigorousnessRigour
Type of:StrictnessSternness
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
Type of:ConsistenceBodySubstance