Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Successful is a synonym for efficacious in effective topic. In some cases you can use "Successful" instead an adjective "Efficacious", when it comes to topics like efficient.
Successful
Successful adjective - Having attained a desired end or state of good fortune.
Efficacious is a synonym for successful in effective topic. You can use "Efficacious" instead an adjective "Successful", if it concerns topics such as favorable.
Mutual synonyms
Related pairs
- good and efficacious
- good and successful
- advantageous and efficacious
- advantageous and successful
- helpful and efficacious
- helpful and successful
- substantial and efficacious
- substantial and successful
- effective and efficacious
- effective and successful
- strong and efficacious
- strong and successful
- powerful and efficacious
- powerful and successful
Cite this Source
Successful and Efficacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/efficacious/successful
Efficacious & Successful. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/efficacious/successful>.
Successful or Efficacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/efficacious/successful.
Google Ngram Viewer shows how "efficacious" and "successful" have occurred on timeline