Definition of inefficacy
: lack of power to produce a desired effect
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Recent Examples of inefficacy from the Web
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Kelly will inherit a West Wing that has set a new standard for chaos, backstabbing, factionalism, and inefficacy.
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The inefficacy of Obama’s administration implementing protection for undocumented immigrants should also be highlighted.
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The giraffe, said Mivart, was a perfect example of natural selection’s inefficacy.
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Origin and Etymology of inefficacy
Late Latin inefficacia, from Latin inefficac-, inefficax inefficacious, from in- + efficac-, efficax efficacious
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First Known Use: circa 1615
in the meaning defined above
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