Foundationless and Well-founded
Opposite meaning words
Foundationless
Foundationless adjective - Having no basis in reason or fact.
Usage example: a careful investigation proved that the charges were foundationless
Well-founded is an antonym for foundationless.
Well-founded
Well-founded adjective - According to the rules of logic.
Foundationless is an antonym for well-founded.
Cite this Source
Well-founded and Foundationless. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/foundationless/well-founded
Foundationless & Well-founded. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/foundationless/well-founded>.
Well-founded or Foundationless. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/foundationless/well-founded.
