Efficacious and Unskilled
Opposite meaning words
Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Usage example: taking a cookie break while studying is one of the most efficacious ways of rejuvenating the mind that I have ever discovered
Unskilled is an antonym for efficacious.
Unskilled
Unskilled adjective - Lacking or showing a lack of expert skill.
Efficacious is an antonym for unskilled.
Nearby Words: unskillful, unskilful, unskilfully
Cite this Source
Unskilled and Efficacious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/efficacious/unskilled
Efficacious & Unskilled. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/efficacious/unskilled>.
Unskilled or Efficacious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/efficacious/unskilled.
Google Ngram Viewer shows how "efficacious" and "unskilled" have occurred on timeline