Inefficient and Successful

Opposite meaning words

Inefficient adjective - Not producing the desired result.

Usage example: inefficient measures to solve the problem of teenage smoking

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Successful is an antonym for inefficient.

Successful adjective - Having attained a desired end or state of good fortune.

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Inefficient is an antonym for successful.

Cite this Source

Successful and Inefficient. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/inefficient/successful

Inefficient & Successful. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/inefficient/successful>.

Successful or Inefficient. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/inefficient/successful.

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