The quality or state of being salty; the presence of salt in a substance. The saltiness of the ocean water made it unsuitable for drinking.
A measure of the concentration of salt in a solution, often used in reference to seawater. Scientists measured the saltiness of the sea to study its effects on marine life.
Informal. A state of irritation, resentment, or bitterness, especially after a disappointment or loss. There was noticeable saltiness in his voice when he talked about the referee’s decision.