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
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of efficacious
Rhode is dedicated to making products based in science and great formulation, simplifying many of the mysteries and complex narratives behind efficacious skincare.
—
Jason Pham, StyleCaster, 29 May 2025
If price controls are adopted in the U.S., then patients living with Alzheimer’s disease, pancreatic cancer, or muscular dystrophy may end up waiting in vain for efficacious treatments.
—Wayne Winegarden, Forbes.com, 4 May 2025
Consequently, these controls exacerbate the tension between patients who have access to safe and efficacious medicines and patients living with untreated or poorly treated conditions.
—Wayne Winegarden, Forbes.com, 20 Apr. 2025
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
See All Example Sentences for efficacious
Jason Pham, StyleCaster, 29 May 2025
If price controls are adopted in the U.S., then patients living with Alzheimer’s disease, pancreatic cancer, or muscular dystrophy may end up waiting in vain for efficacious treatments.
—Wayne Winegarden, Forbes.com, 4 May 2025
Consequently, these controls exacerbate the tension between patients who have access to safe and efficacious medicines and patients living with untreated or poorly treated conditions.
—Wayne Winegarden, Forbes.com, 20 Apr. 2025
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
See All Example Sentences for efficacious
Recent Examples of Synonyms for efficacious
Adjective
-
In some ways, the purpose seems obvious — an efficient way to refine your hand-eye coordination before a big match, like Alcaraz’s showdown with American Taylor Fritz on Friday in the Wimbledon men’s semifinals.—
Rustin Dodd,
New York Times,
11 July 2025
-
Organizations that focus on integrating their systems may see faster, more efficient reporting, centralized information management and a comprehensive view of progress toward goals.—
Cynthia Tee,
Forbes.com,
11 July 2025
Adjective
-
Seniors who participate in the AmeriCorps programs, for example, also are involved in different but related programs that may now be less effective because AmeriCorps dollars provided transportation or other services.—
Dan Horn,
The Enquirer,
23 July 2025
-
Our tester found the Rubbermaid Reveal to be especially effective for detail cleaning in tight spaces like grout lines and corners.—
Maggie Horton,
People.com,
22 July 2025
Adjective
-
Those soft ticket sales suggest that nostalgia isn’t nearly as potent as Sony might have hoped when greenlighting the slasher sequel and reuniting the original 1998 film’s stars, Freddie Prinze Jr. and Jennifer Love Hewitt.—
Rebecca Rubin,
Variety,
20 July 2025
-
The moment for me in that scene that’s the most potent is actually not the poster.—
Brian Hiatt,
Rolling Stone,
20 July 2025
Cite this Entry
“Efficacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficacious. Accessed 25 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share