Formidable
Formidable adjective - Causing fear.
Well-founded and formidable are semantically related. In some cases you can use "Well-founded" instead an adjective "Formidable".
Nearby Word: formidably
Well-founded
Well-founded adjective - According to the rules of logic.
Formidable and well-founded are semantically related. Sometimes you can use "Formidable" instead an adjective phrase "Well-founded".
Cite this Source
Well-founded and Formidable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/formidable/well-founded
Formidable & Well-founded. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/formidable/well-founded>.
Well-founded or Formidable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/formidable/well-founded.
