Hardness Meaning

There are 5 meaning(s) for word Hardness

Meaning 1 : devoid of passion or feeling; hardheartedness

    Synonyms : callosity,  callousness,  insensibility,  unfeelingness
Meaning 2 : excessive sternness

    Synonyms : harshness,  inclemency,  rigor,  rigorousness,  rigour,  rigourousness,  severeness,  severity,  stiffness
Meaning 3 : the quality of being difficult to do

    Example : he assigned a series of problems of increasing hardness

    Synonyms : ruggedness
Meaning 4 : a quality of water that contains dissolved mineral salts that prevent soap from lathering

    Example : the costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present

Meaning 5 : the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale

Hardness Antonyms