Words · Familiar
hardness
/ˈhɑɹdnəs/ · 8 letters · 7 distinct letters
- noun
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
- 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
- noun
devoid of passion or feeling; hardheartedness
- noun
the quality of being difficult to do
he assigned a series of problems of increasing hardness
- noun
excessive sternness
severity of character