Functional and Ineffectual

Opposite meaning words

Functional adjective - Being in effective operation.

Usage example: I don't think that vending machine is functional, so don't put money into it

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Ineffectual is an antonym for functional.

Ineffectual adjective - Producing no results.

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

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Functional is an antonym for ineffectual.

Nearby Words: ineffective, ineffectively

Cite this Source

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

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

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

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