Inefficacy and Potency

Opposite meaning words

Inefficacy noun - A lack of efficacy.

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Potency is an antonym for inefficacy.

Potency noun - The ability to exert effort for the accomplishment of a task.

Usage example: vitamins of high potency that should be taken only in the proper dosage

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Inefficacy is an antonym for potency.

Nearby Words: potent, potential, potently

Cite this Source

Potency and Inefficacy. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/inefficacy/potency

Inefficacy & Potency. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/inefficacy/potency>.

Potency or Inefficacy. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/inefficacy/potency.

Google Ngram Viewer shows how "inefficacy" and "potency" have occurred on timeline