Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Irrefutable and efficacious are semantically related. In some cases you can use "Irrefutable" instead an adjective "Efficacious".
Irrefutable
Irrefutable adjective - Not capable of being challenged or proved wrong.
Efficacious and irrefutable are semantically related. Sometimes you can use "Efficacious" instead an adjective "Irrefutable".
Nearby Words: irrefutably, irrefutability
Mutual synonyms
Related pairs
- good and efficacious
- good and irrefutable
- sound and efficacious
- sound and irrefutable
- positive and efficacious
- positive and irrefutable
- certain and efficacious
- certain and irrefutable
- true and efficacious
- true and irrefutable
- valid and efficacious
- valid and irrefutable
- forceful and efficacious
- forceful and irrefutable
Cite this Source
Irrefutable and Efficacious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/efficacious/irrefutable
Efficacious & Irrefutable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/efficacious/irrefutable>.
Irrefutable or Efficacious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/efficacious/irrefutable.
Google Ngram Viewer shows how "efficacious" and "irrefutable" have occurred on timeline