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Synonyms

inefficacy

American  
[in-ef-i-kuh-see] / ɪnˈɛf ɪ kə si /

noun

  1. lack of power or capacity to produce the desired effect.


Etymology

Origin of inefficacy

From the Late Latin word inefficācia, dating back to 1605–15. See in- 3, efficacy

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.

The process is often triggered by post-approval studies showing inefficacy, according to Harvard Law professor I. Glenn Cohen.

From Reuters • Mar. 23, 2023

He seemed to think he could figure this out, make the kind of adjustment he has made so many times before in a career defined by his ability to stave off long stretches of inefficacy.

From Washington Post • Oct. 7, 2022

This extraordinary stylistic range stems from Graham’s wish to make a lavish formal show of her epistemological turbulence, her poems’ provisional victories over their own inefficacy.

From The New Yorker • Mar. 23, 2015

The incident sparked a fiery public debate and several protests decrying the inefficacy of the Gurgaon police.

From New York Times • Apr. 4, 2012

The extreme depravity and disgusting nature of the scene; the inefficacy of acting to encourage or maintain the delusion.

From The Life and Letters of Mary Wollstonecraft Shelley, Volume I (of 2) by Marshall, Florence A. Thomas