Synonyms and Antonyms for hardness

1. hardness (n.)

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

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3. hardness (n.)

a quality of water that contains dissolved mineral salts that prevent soap from lathering


4. hardness (n.)

the quality of being difficult to do

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5. hardness (n.)

devoid of passion or feeling; hardheartedness

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