as in efficient
producing or capable of producing a desired result
taking a cookie break while studying is one of the most efficacious ways of rejuvenating the mind that I have ever discovered
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Recent Examples of efficacious
Thorne is also rigorously tested and has worked with independent researchers from places like Mayo Clinic and the National Institutes of Health, to ensure its products are high-performance, safe, and efficacious.
—
Vogue, 30 Mar. 2025
Despite Chief Justice Warren formally writing the opinion to apply exclusively to education, its attack on segregation has—paradoxically—been most efficacious beyond that original context.
—Justin Driver, The Atlantic, 15 Mar. 2025
Oh, that’s right, there’s a measles vaccines that is over 97% efficacious against the measles after two doses are administered, which people have been getting for years.
—Bruce Y. Lee, Forbes, 15 Mar. 2025
On the other side are patients living with untreated diseases hoping that pharmaceutical companies will soon develop an efficacious treatment.
—Wayne Winegarden, Forbes, 5 Mar. 2025
See All Example Sentences for efficacious
Vogue, 30 Mar. 2025
Despite Chief Justice Warren formally writing the opinion to apply exclusively to education, its attack on segregation has—paradoxically—been most efficacious beyond that original context.
—Justin Driver, The Atlantic, 15 Mar. 2025
Oh, that’s right, there’s a measles vaccines that is over 97% efficacious against the measles after two doses are administered, which people have been getting for years.
—Bruce Y. Lee, Forbes, 15 Mar. 2025
On the other side are patients living with untreated diseases hoping that pharmaceutical companies will soon develop an efficacious treatment.
—Wayne Winegarden, Forbes, 5 Mar. 2025
See All Example Sentences for efficacious
Recent Examples of Synonyms for efficacious
Adjective
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Airlines, including United, are working with the FAA to address the issues and ensure safe and efficient air travel.—
Zach Wichter,
USA Today,
13 May 2025
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Regular interaction expands potential deal flow and positions you as a credible and efficient buyer, capable of quickly responding when attractive opportunities arise.—
Paul Davis,
Forbes.com,
12 May 2025
Adjective
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About 50% of Connecticut’s Medicaid expenses in most program areas are covered through federal reimbursement, which would make the effective annual cost to the state about $137.5 million.—
Keith M. Phaneuf,
Hartford Courant,
10 May 2025
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Brown accounted for four of those free-throw attempts, and the rest came from Boston’s effective bench, with Pritchard, Kornet and Kristaps Porzingis making all eight of their first-half freebies.—
Zack Cox,
Boston Herald,
10 May 2025
Adjective
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Fans from America to Europe to Australia bought his books and flocked to his one-man shows, and his potent doses of humor and hard truth enthralled both the highborn and the humble.—
Mary Ann Gwinn,
Los Angeles Times,
9 May 2025
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Fentanyl — a potent and deadly opioid laced into seven out of 10 pills seized by officers — wasn’t out on the street.—
Julia Coin,
Charlotte Observer,
8 May 2025
Cite this Entry
“Efficacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficacious. Accessed 22 May. 2025.
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