Inefficient and Worthwhile

Inefficient

Inefficient adjective - Not producing the desired result.
Usage example: inefficient measures to solve the problem of teenage smoking

Worthwhile is an antonym for inefficient.

Nearby Words: inefficiency, inefficiently

Worthwhile

Worthwhile adjective - Sufficiently valuable to justify the investment of time or interest.

Inefficient is an antonym for worthwhile.
Cite this Source
Worthwhile and Inefficient. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/inefficient/worthwhile
Inefficient & Worthwhile. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/inefficient/worthwhile>.
Worthwhile or Inefficient. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/inefficient/worthwhile.
Google Ngram Viewer shows how "inefficient" and "worthwhile" have occurred on timeline