Frothy and Unfrivolous
Opposite meaning words
Frothy
Frothy adjective - Lacking in seriousness or maturity.
Usage example: a frothy comedy that wouldn't exert the brain of a gnat
Unfrivolous is an antonym for frothy.
Unfrivolous
Cite this Source
Unfrivolous and Frothy. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/frothy/unfrivolous
Frothy & Unfrivolous. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/frothy/unfrivolous>.
Unfrivolous or Frothy. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/frothy/unfrivolous.
Google Ngram Viewer shows how "frothy" and "unfrivolous" have occurred on timeline