inefficacy
noun
in·ef·fi·ca·cy (ˌ)i-ˈne-fi-kə-sē 
: lack of power to produce a desired effect
Example Sentences
Recent Examples on the Web The meaninglessness associated with inefficacy, the third symptom of burnout, is trickier to tackle. 
Dianna Mazzone, Allure, 19 Aug. 2022 One of its most surprising features has been the inefficacy of what was only months ago considered a highly capable Russian military. Eric Tegler, Forbes, 27 May 2022 All this inefficacy belies a deeper problem with our education system. Daniel Buck, National Review, 30 Oct. 2021 The most common challenges for organizations today include high carbon emissions, finite fossil-fuel availability, severe weather issues causing service disruptions, water scarcity, inefficacy and waste management. Ashish Saxena, Forbes, 8 Oct. 2021 Phil Jackson took over the team the next year, ushering in a new period of inefficacy for the team. New York Times, 20 Oct. 2021 As feelings of cynicism, inefficacy and exhaustion increase, naturally, joy starts to dwindle across most if not all areas of life. Rachel Montañez, Forbes, 24 June 2021 The potential side effects or inefficacy of the drug are immaterial compared to that outcome. Wired Staff, Wired, 5 Apr. 2020 President Trump is reportedly frustrated with the seeming inefficacy of U.S. efforts to force Maduro out. Ishaan Tharoor, Washington Post, 25 Feb. 2020 See More
Dianna Mazzone, Allure, 19 Aug. 2022 One of its most surprising features has been the inefficacy of what was only months ago considered a highly capable Russian military. Eric Tegler, Forbes, 27 May 2022 All this inefficacy belies a deeper problem with our education system. Daniel Buck, National Review, 30 Oct. 2021 The most common challenges for organizations today include high carbon emissions, finite fossil-fuel availability, severe weather issues causing service disruptions, water scarcity, inefficacy and waste management. Ashish Saxena, Forbes, 8 Oct. 2021 Phil Jackson took over the team the next year, ushering in a new period of inefficacy for the team. New York Times, 20 Oct. 2021 As feelings of cynicism, inefficacy and exhaustion increase, naturally, joy starts to dwindle across most if not all areas of life. Rachel Montañez, Forbes, 24 June 2021 The potential side effects or inefficacy of the drug are immaterial compared to that outcome. Wired Staff, Wired, 5 Apr. 2020 President Trump is reportedly frustrated with the seeming inefficacy of U.S. efforts to force Maduro out. Ishaan Tharoor, Washington Post, 25 Feb. 2020 See More Word History
Etymology
Late Latin inefficacia, from Latin inefficac-, inefficax inefficacious, from in- + efficac-, efficax efficacious
First Known Use
circa 1615, in the meaning defined above
inefficacy
noun
as in ineffectiveness
Synonyms & Similar Words
Relevance
- ineffectiveness
- inefficiency
- ineffectuality
- ineffectualness
- impotence
- incompetence
- incompetency
- inability
- ineptitude
- powerlessness
- incapacity
- inefficaciousness
- incapability
- inadequacy
- insufficiency
- inaptitude
- disqualification
Antonyms & Near Antonyms
- effectiveness
- efficiency
- efficaciousness
- effectualness