Inefficacious and Impossible

Related words

Inefficacious adjective - Producing no results.

Usage example: an inefficacious medication for a rare form of tuberculosis

Show all Definitions

Impossible and inefficacious are semantically related. In some cases you can use "Impossible" instead an adjective "Inefficacious".

Impossible adjective - Incapable of being solved or accomplished.

Show all Definitions

Inefficacious and impossible are semantically related. Sometimes you can use "Inefficacious" instead an adjective "Impossible".

Nearby Words: impossibility, impossibly

Cite this Source

Impossible and Inefficacious. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/inefficacious/impossible

Inefficacious & Impossible. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/inefficacious/impossible>.

Impossible or Inefficacious. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/inefficacious/impossible.

Google Ngram Viewer shows how "inefficacious" and "impossible" have occurred on timeline