Be efficacious and Disallow

Opposite meaning terms

Definitions of Be efficacious not found.

Disallow is an antonym for be efficacious in win topic.

Disallow verb - To declare not to be true.

Show all Definitions

Be efficacious is an antonym for disallow.

Nearby Words: disallowance, disallowing

Cite this Source

Disallow and Be efficacious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/be_efficacious/disallow

Be efficacious & Disallow. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/be_efficacious/disallow>.

Disallow or Be efficacious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/be_efficacious/disallow.

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