Efficacious
Efficacious adjective - Producing or capable of producing a desired result.
Unctuous and efficacious are semantically related. In some cases you can use "Unctuous" instead an adjective "Efficacious".
Unctuous
Unctuous adjective - Not being or expressing what one appears to be or express.
Efficacious and unctuous are semantically related. Sometimes you can use "Efficacious" instead an adjective "Unctuous".
Nearby Word: unctuously
Mutual synonyms
Cite this Source
Unctuous and Efficacious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/efficacious/unctuous
Efficacious & Unctuous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/efficacious/unctuous>.
Unctuous or Efficacious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/efficacious/unctuous.
Google Ngram Viewer shows how "efficacious" and "unctuous" have occurred on timeline