Extinct
Extinct adjective - No longer existing.
Groundless and extinct are semantically related. In some cases you can use "Groundless" instead an adjective "Extinct".
Nearby Word: extinction
Groundless
Groundless adjective - Having no basis in reason or fact.
Extinct and groundless are semantically related. Sometimes you can use "Extinct" instead an adjective "Groundless".
Nearby Words: ground, groundlessness
Mutual synonyms
Cite this Source
Groundless and Extinct. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/extinct/groundless
Extinct & Groundless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/extinct/groundless>.
Groundless or Extinct. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/extinct/groundless.
Google Ngram Viewer shows how "extinct" and "groundless" have occurred on timeline