Inefficacy
Inefficacy noun - A lack of efficacy.
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Synonyms for Inefficacy
Inability is a synonym for inefficacy. In some cases you can use "Inability" instead a noun "Inefficacy".
Inability
Inability noun - The lack of sufficient ability, power, or means.
Usage example: the apparent inability of young children to sit still
Inefficacy is a synonym for inability in skill topic. You can use "Inefficacy" instead a noun "Inability", if it concerns topics such as incompetence.
Mutual synonyms
Related pairs
- weakness and inefficacy
- weakness and inability
- failure and inefficacy
- failure and inability
- inadequacy and inefficacy
- inadequacy and inability
- insufficiency and inefficacy
- insufficiency and inability
- uselessness and inefficacy
- uselessness and inability
- incompetence and inefficacy
- incompetence and inability
- ineptitude and inefficacy
- ineptitude and inability
Cite this Source
Inability and Inefficacy. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/inefficacy/inability
Inefficacy & Inability. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/inefficacy/inability>.
Inability or Inefficacy. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/inefficacy/inability.
Google Ngram Viewer shows how "inefficacy" and "inability" have occurred on timeline