Powerful and Uneffective

Opposite meaning words

Powerful adjective - Having great power or force or potency or effect.

Usage example: powerful drugs

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Uneffective is an antonym for powerful.

Uneffective adjective - Not producing an intended effect.

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Powerful is an antonym for uneffective.

Cite this Source

Uneffective and Powerful. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/powerful/uneffective

Powerful & Uneffective. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/powerful/uneffective>.

Uneffective or Powerful. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/powerful/uneffective.

Google Ngram Viewer shows how "powerful" and "uneffective" have occurred on timeline