Groundless and Well-founded
Opposite meaning words
Groundless
Groundless adjective - Having no basis in reason or fact.
Usage example: fears of a strike proved groundless
Nearby Words: ground, groundlessness
Well-founded
Well-founded adjective - Based on sound reasoning or information.
Usage example: a well-founded complaint about the business's treatment of its customers
Groundless is an antonym for well-founded.
Cite this Source
Well-founded and Groundless. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/groundless/well-founded
Groundless & Well-founded. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/groundless/well-founded>.
Well-founded or Groundless. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/groundless/well-founded.
