Foundationless and Plausible
Opposite meaning words
Foundationless
Foundationless adjective - Having no basis in reason or fact.
Usage example: a careful investigation proved that the charges were foundationless
Plausible is an antonym for foundationless.
Plausible
Plausible adjective - Worthy of being accepted as true or reasonable.
Foundationless is an antonym for plausible.
Nearby Words: plausibly, plausibility
Cite this Source
Plausible and Foundationless. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/foundationless/plausible
Foundationless & Plausible. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/foundationless/plausible>.
Plausible or Foundationless. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/foundationless/plausible.
Google Ngram Viewer shows how "foundationless" and "plausible" have occurred on timeline