日本語WordNet
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"
devoid of passion or feeling; hardheartedness
the quality of being difficult to do; "he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail"
excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
JMdict
AIによる解説
Hardness is the quality of being hard, firm, or unyielding. It can refer to physical hardness, water hardness, or a person's coldness.
ライセンス: KeyLang Original
Pronunciation data from ipa-dict (MIT License) based on cmudict-ipa by @lingz