kōsui
1. hard water
Noun
#124886
1. hard water
1. Hard water.; Is hard water.
1. Not hard water.; Soft water.
1. If/when hard water
1. It wasn't hard water.
1. If/when hard water
1. Wasn't hard water.
1. With hard water.; In hard water.
1. It is not hard water.
1. It was hard water.