a quality of water that contains dissolved mineral salts that prevent soap from lathering | an essential and distinguishing attribute of something or someone |
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale | (music) the distinctive property of a complex sound (a voice or noise or musical sound) |
the quality of being difficult to do | a degree or grade of excellence or worth |
devoid of passion or feeling; hardheartedness | a characteristic property that defines the apparent individual nature of something |
excessive sternness | high social status |