Firm
Firm adjective - Not showing weakness or uncertainty.
Irrefutable and firm are semantically related. In some cases you can use "Irrefutable" instead an adjective "Firm".
Irrefutable
Irrefutable adjective - Not capable of being challenged or proved wrong.
Firm and irrefutable are semantically related. Sometimes you can use "Firm" instead an adjective "Irrefutable".
Nearby Words: irrefutably, irrefutability
Mutual synonyms
Cite this Source
Irrefutable and Firm. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/firm/irrefutable
Firm & Irrefutable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/firm/irrefutable>.
Irrefutable or Firm. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/firm/irrefutable.
Google Ngram Viewer shows how "firm" and "irrefutable" have occurred on timeline