Extinct
Extinct adjective - No longer existing.
Ungrounded and extinct are semantically related In some cases you can use "Ungrounded" instead an adjective "Extinct".
Nearby Word: extinction
Ungrounded
Extinct and ungrounded are semantically related in fictional topic. Sometimes you can use "Extinct" instead an adjective "Ungrounded".
Cite this Source
Ungrounded and Extinct. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/extinct/ungrounded
Extinct & Ungrounded. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/extinct/ungrounded>.
Ungrounded or Extinct. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/extinct/ungrounded.
Google Ngram Viewer shows how "extinct" and "ungrounded" have occurred on timeline