Inefficacious and Profitable

Opposite meaning words

Inefficacious adjective - Not producing the desired result.

Usage example: his efforts to restore the neglected houseplant back to health were belated and sadly inefficacious

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Profitable is an antonym for inefficacious.

Profitable adjective - Yielding a profit.

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Inefficacious is an antonym for profitable.

Cite this Source

Profitable and Inefficacious. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/inefficacious/profitable

Inefficacious & Profitable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/inefficacious/profitable>.

Profitable or Inefficacious. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/inefficacious/profitable.

Google Ngram Viewer shows how "inefficacious" and "profitable" have occurred on timeline