Ineffectual and Sufficient

Opposite meaning words

Ineffectual adjective - Producing no results.

Usage example: another ineffectual plan to lose weight without dieting or exercising

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Sufficient is an antonym for ineffectual in useless topic.

Nearby Words: ineffective, ineffectively

Sufficient adjective - Of a quantity that can fulfill a need or requirement but without being abundant.

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Ineffectual is an antonym for sufficient.

Cite this Source

Sufficient and Ineffectual. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/ineffectual/sufficient

Ineffectual & Sufficient. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/ineffectual/sufficient>.

Sufficient or Ineffectual. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/ineffectual/sufficient.

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