Bootless and Efficacious

Opposite meaning words

Bootless adjective - Producing no results.

Usage example: a bootless effort to get tickets to the sold-out game

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Efficacious is an antonym for bootless.

Nearby Word: boot

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

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Bootless is an antonym for efficacious.

Cite this Source

Efficacious and Bootless. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/bootless/efficacious

Bootless & Efficacious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/bootless/efficacious>.

Efficacious or Bootless. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/bootless/efficacious.

Google Ngram Viewer shows how "bootless" and "efficacious" have occurred on timeline