Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Faultless and efficacious are semantically related. In some cases you can use "Faultless" instead an adjective "Efficacious".
Faultless
Faultless adjective - Being entirely without fault or flaw.
Efficacious and faultless are semantically related. Sometimes you can use "Efficacious" instead an adjective "Faultless".
Mutual synonyms
Related pairs
- good and efficacious
- good and faultless
- sound and efficacious
- sound and faultless
- perfect and efficacious
- perfect and faultless
- true and efficacious
- true and faultless
- unfailing and efficacious
- unfailing and faultless
- superior and efficacious
- superior and faultless
- excellent and efficacious
- excellent and faultless
Cite this Source
Faultless and Efficacious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/efficacious/faultless
Efficacious & Faultless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/efficacious/faultless>.
Faultless or Efficacious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/efficacious/faultless.
Google Ngram Viewer shows how "efficacious" and "faultless" have occurred on timeline