Inefficacious and Impotent

Inefficacious

Inefficacious adjective - Not producing the desired result.

Impotent and inefficacious are semantically related. in ineffectual topic. In some cases you can use "Impotent" instead an adjective "Inefficacious".

Impotent

Impotent adjective - Not able to produce fruit or offspring.

Inefficacious and impotent are semantically related. Sometimes you can use "Inefficacious" instead an adjective "Impotent".

Nearby Word: impotence
Cite this Source
Impotent and Inefficacious. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/inefficacious/impotent
Inefficacious & Impotent. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/inefficacious/impotent>.
Impotent or Inefficacious. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/inefficacious/impotent.
Google Ngram Viewer shows how "inefficacious" and "impotent" have occurred on timeline