1. emitting or filled with bubbles as from carbonation or fermentation.

- foamy (or frothy) beer

Similar word(s): effervescent, bubbling, bubbly, effervescing, foaming, foamy, spumy

2. lightweight; lacking depth or importance.

Similar word(s): superficial, airheaded, dizzy, featherbrained, giddy, lightheaded, silly, flighty, flyaway, scatterbrained, flippant, idle, light, trivial, frivolous

Sentences with frothy as an adjective:

- I like my milkshakes frothy, not flat like this!

- songs with frothy lyrics