Inefficacious
Inefficacious adjective - Not producing the desired result.
Powerless and inefficacious are semantically related. in ineffectual topic. In some cases you can use "Powerless" instead an adjective "Inefficacious".
Powerless
Powerless adjective - Unable to act or achieve one's purpose.
Inefficacious and powerless are semantically related. You can use "Inefficacious" instead an adjective "Powerless".
Mutual synonyms
Related pairs
- inept and inefficacious
- inept and powerless
- incompetent and inefficacious
- incompetent and powerless
- inefficient and inefficacious
- inefficient and powerless
- inadequate and inefficacious
- inadequate and powerless
- feeble and inefficacious
- feeble and powerless
- weak and inefficacious
- weak and powerless
- worthless and inefficacious
- worthless and powerless
Cite this Source
Powerless and Inefficacious. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/inefficacious/powerless
Inefficacious & Powerless. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/inefficacious/powerless>.
Powerless or Inefficacious. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/inefficacious/powerless.
Google Ngram Viewer shows how "inefficacious" and "powerless" have occurred on timeline