Extinct
Extinct adjective - No longer existing.
Serous and extinct are semantically related. In some cases you can use "Serous" instead an adjective "Extinct".
Nearby Word: extinction
Serous
Serous adjective - Of or producing or containing serum.
Cite this Source
Serous and Extinct. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/extinct/serous
Extinct & Serous. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/extinct/serous>.
Serous or Extinct. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/extinct/serous.
Google Ngram Viewer shows how "extinct" and "serous" have occurred on timeline