Smooth
Unctuous
Unctuous adjective - Not being or expressing what one appears to be or express.
Smooth is a synonym for unctuous in characterisitc topic. You can use "Smooth" instead an adjective "Unctuous", if it concerns topics such as suave, ingratiating, glib, sycophantic.
Nearby Word: unctuously
Mutual synonyms
Cite this Source
Unctuous and Smooth. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/smooth/unctuous
Smooth & Unctuous. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/smooth/unctuous>.
Unctuous or Smooth. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/smooth/unctuous.
Google Ngram Viewer shows how "smooth" and "unctuous" have occurred on timeline