Inefficacious
Inefficacious adjective - Not producing the desired result.
Weak and inefficacious are semantically related in ineffective topic. In some cases you can use "Weak" instead an adjective "Inefficacious".
Weak
Weak adjective - Lacking bodily strength.
Inefficacious and weak are semantically related in ineffective topic. Sometimes you can use "Inefficacious" instead an adjective "Weak".
Mutual synonyms
Related pairs
- inept and inefficacious
- inept and weak
- incompetent and inefficacious
- incompetent and weak
- inadequate and inefficacious
- inadequate and weak
- feeble and inefficacious
- feeble and weak
- ineffective and inefficacious
- ineffective and weak
- ineffectual and inefficacious
- ineffectual and weak
- invalid and inefficacious
- invalid and weak
Cite this Source
Weak and Inefficacious. (2016). Retrieved 2026, August 11, from https://thesaurus.plus/related/inefficacious/weak
Inefficacious & Weak. N.p., 2016. Web. 11 Aug. 2026. <https://thesaurus.plus/related/inefficacious/weak>.
Weak or Inefficacious. 2016. Accessed August 11, 2026. https://thesaurus.plus/related/inefficacious/weak.
Google Ngram Viewer shows how "inefficacious" and "weak" have occurred on timeline