Smooth and Unctuous

Smooth

Smooth adjective - Having or showing very polished and worldly manners.
Usage example: a smooth salesman of expensive jewelry

Unctuous is a synonym for smooth in suave topic. In some cases you can use "Unctuous" instead an adjective "Smooth", when it comes to topics like glib, suave in behavior.

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
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