IPA: /ˈfrɔːθɪnəs/
KK: /ˈfrɔθɪnəs/
The state or quality of having bubbles or foam on the surface, often seen in drinks or other liquids.
The frothiness of the cappuccino made it look very appealing.
Frothiness → It is formed from "froth" (from Old English *froþ*, meaning a bubbling or foam) and "-iness" (meaning the quality of). The word "frothiness" refers to the quality of being frothy or bubbly.
Think of the word 'froth' which means bubbling foam, and remember that 'frothiness' describes the quality of being bubbly.