Definition
Frothiness refers to the state of being full of froth, which is a mass of small bubbles in a liquid. Think of the foamy head on a cappuccino or the bubbly top of a freshly poured beer. It's a light and airy quality, often associated with beverages but can also describe textures and experiences. Unlike "effervescence" which implies active bubbling, "frothiness" is more about the end result of that bubbling. It suggests a delicate, almost ethereal quality. It also describes something superficial or insubstantial.