efficacious
Usage
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
She starts by noting that the Voting Rights Act is, or was. one of the most consequential, efficacious, amply justified exercises of federal legislative power in the nation’s history.
From Slate • Apr. 30, 2026
Lilly is also developing a highly efficacious injection called retatrutide that targets GIP and GLP-1 — both of which are activated by tirzepatide — in addition to glucagon.
From MarketWatch • Apr. 1, 2026
Instead of manipulating government for their own narrow interests, the rich can add a distinctively independent-minded, public-spirited and efficacious set of voices to the national debate.
From The Wall Street Journal • Feb. 17, 2026
The low dose was a little more than 65% efficacious in both cases.
From Science Magazine • Apr. 26, 2024
In each case, intervention, no matter how worthless, can appear to be quite efficacious.
From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos
Vocabulary lists containing efficacious
"The Witch Boy" by Molly Knox Ostertag
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George Washington's Farewell Address (1796)
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The Prince
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