1
as in unsuccessful
not producing the desired result
his efforts to restore the neglected houseplant back to health were belated and sadly inefficacious
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Antonyms & Near Antonyms
2
as in futile
producing no results
an inefficacious medication for a rare form of tuberculosis
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Example Sentences
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Recent Examples of inefficacious
Most wore inefficacious cloth masks, too.
—
James Lileks, National Review, 25 Aug. 2022
Day — who grew up watching the spelling bee — came up with the concept of exploring the psyche of a winner with an ultimately inefficacious career in 2015 while at a UCB improv sketch-writing class.
—NBC News, 6 Oct. 2020
James Lileks, National Review, 25 Aug. 2022
Day — who grew up watching the spelling bee — came up with the concept of exploring the psyche of a winner with an ultimately inefficacious career in 2015 while at a UCB improv sketch-writing class.
—NBC News, 6 Oct. 2020
Recent Examples of Synonyms for inefficacious
Adjective
-
Several attempts to establish at least a partial ceasefire have been unsuccessful.—
DASHA LITVINOVA,
Chicago Tribune,
14 May 2025
-
Later that month, Kalyn Free, an attorney from Oklahoma who was unsuccessful in her bid for a vice chair position, filed a complaint alleging that the DNC improperly merged two separate questions into a single vote.—
Martha McHardy,
MSNBC Newsweek,
14 May 2025
Adjective
-
Though their efforts were futile, their remains provide remarkable insight into the doomed city’s final moments.—
Eli Wizevich,
Smithsonian Magazine,
13 May 2025
-
Through the two-hour journey that makes up the Thunderbolt’s origin story, the audience experiences the way these skilled fighters continue butting heads over the most futile issues.—
Malik Peay,
Essence,
8 May 2025
Adjective
-
The space weather exercise overseen by NOAA found that inefficient communication between space weather experts and other government agencies and stakeholders likely to deal with the fallout of these incidents could lead to incorrect conclusions.—
Tereza Pultarova,
Space.com,
16 May 2025
-
Businesses often overlook the financial consequences of poor hiring decisions or inefficient technology, yet these areas directly affect the bottom line.—
Raja Walia,
Forbes.com,
16 May 2025
Adjective
-
But in a time long before replay could overturn a call, protest was useless.—
Blair Kerkhoff,
Kansas City Star,
16 May 2025
-
Those strong starts are useless if the Celtics can’t hold onto the advantage.—
Kristian Winfield,
New York Daily News,
12 May 2025
Adjective
-
The inability to raise the left can render his height advantage ineffective on the glass.—
Bennett Durando,
Denver Post,
9 May 2025
-
Extracts of garlic, hot pepper, orange peels or companion planting are ineffective.—
Arricca Elin SanSone,
Southern Living,
7 May 2025
Adjective
-
Both Lyman and Nordhaus say shrinking the NRC would be counterproductive.—
Geoff Brumfiel,
NPR,
9 May 2025
-
But not entirely on how or who’s in charge Harvard’s public refusal of Trump’s demands, Ackman asserted this week, was a counterproductive move that led to an unnecessary legal fight, as the university soon sued the government to restore its funding.—
Andy Rose,
CNN Money,
6 May 2025
Cite this Entry
“Inefficacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inefficacious. Accessed 22 May. 2025.
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