Effectualness and Inefficiency

Opposite meaning words

Effectualness noun - The power to produce a desired result.

Usage example: the effectualness of that new cancer treatment has yet to be proven

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Inefficiency is an antonym for effectualness in effect topic.

Inefficiency noun - Unskillfulness resulting from a lack of efficiency.

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Effectualness is an antonym for inefficiency.

Nearby Words: inefficient, inefficiently

Cite this Source

Inefficiency and Effectualness. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/effectualness/inefficiency

Effectualness & Inefficiency. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/effectualness/inefficiency>.

Inefficiency or Effectualness. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/effectualness/inefficiency.

Google Ngram Viewer shows how "effectualness" and "inefficiency" have occurred on timeline