Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Usage example: taking a cookie break while studying is one of the most efficacious ways of rejuvenating the mind that I have ever discovered
Operative is a synonym for efficacious in effective topic. In some cases you can use "Operative" instead an adjective "Efficacious", when it comes to topics like efficient.
Operative
Operative adjective - Producing or capable of producing a desired result.
Usage example: unfortunately, the operative amount of the medication and the lethal amount were too close for it to be used safely
Efficacious is a synonym for operative in effective topic. You can use "Efficacious" instead an adjective "Operative".
Mutual synonyms
Related pairs
- adequate and efficacious
- adequate and operative
- valid and efficacious
- valid and operative
- forceful and efficacious
- forceful and operative
- effective and efficacious
- effective and operative
- active and efficacious
- active and operative
- dynamic and efficacious
- dynamic and operative
- potent and efficacious
- potent and operative
Cite this Source
Operative and Efficacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/efficacious/operative
Efficacious & Operative. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/efficacious/operative>.
Operative or Efficacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/efficacious/operative.
Google Ngram Viewer shows how "efficacious" and "operative" have occurred on timeline