Groundless and Plausible
Opposite meaning words
Groundless
Groundless adjective - Having no basis in reason or fact.
Usage example: fears of a strike proved groundless
Plausible is an antonym for groundless.
Nearby Words: ground, groundlessness
Plausible
Plausible adjective - Worthy of being accepted as true or reasonable.
Groundless is an antonym for plausible.
Nearby Words: plausibly, plausibility
Cite this Source
Plausible and Groundless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/groundless/plausible
Groundless & Plausible. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/groundless/plausible>.
Plausible or Groundless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/groundless/plausible.
Google Ngram Viewer shows how "groundless" and "plausible" have occurred on timeline