Efficient and Otiose

Efficient

Efficient adjective - Producing or capable of producing a desired result.

Otiose is an antonym for efficient.

Nearby Words: efficiency, efficiently, efficacy

Otiose

Otiose adjective - Producing no results.
Usage example: since you haven't read the book, I suppose that it would be otiose to inquire what you thought of it

Efficient is an antonym for otiose.
Cite this Source
Otiose and Efficient. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/efficient/otiose
Efficient & Otiose. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/efficient/otiose>.
Otiose or Efficient. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/efficient/otiose.
Google Ngram Viewer shows how "efficient" and "otiose" have occurred on timeline