Ineffectual and Ultraefficient

Opposite meaning words

Ineffectual adjective - Not producing the desired result.

Usage example: an ineffectual effort to find the trail again did at least lead them to another stunning view of the canyon

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Ultraefficient is an antonym for ineffectual.

Nearby Words: ineffective, ineffectively

Definitions of Ineffectual not found.

Ineffectual is an antonym for ultraefficient.

Cite this Source

Ultraefficient and Ineffectual. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/ineffectual/ultraefficient

Ineffectual & Ultraefficient. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/ineffectual/ultraefficient>.

Ultraefficient or Ineffectual. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/ineffectual/ultraefficient.

Google Ngram Viewer shows how "ineffectual" and "ultraefficient" have occurred on timeline