Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Helpful is a synonym for efficacious. In some cases you can use "Helpful" instead an adjective "Efficacious".
Helpful
Helpful adjective - Providing service or assistance.
Usage example: a Web site that I've always found to be helpful for finding information on common medical problems
Efficacious is a synonym for helpful in beneficial topic. You can use "Efficacious" instead an adjective "Helpful".
Mutual synonyms
Related pairs
- good and efficacious
- good and helpful
- valuable and efficacious
- valuable and helpful
- advantageous and efficacious
- advantageous and helpful
- effective and efficacious
- effective and helpful
- profitable and efficacious
- profitable and helpful
- productive and efficacious
- productive and helpful
- worthwhile and efficacious
- worthwhile and helpful
Cite this Source
Helpful and Efficacious. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/efficacious/helpful
Efficacious & Helpful. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/efficacious/helpful>.
Helpful or Efficacious. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/efficacious/helpful.
Google Ngram Viewer shows how "efficacious" and "helpful" have occurred on timeline