Slippery
Slippery adjective - Given to acting in secret and to concealing one's intentions.
Smooth operator and slippery are semantically related In some cases you can use "Smooth operator" instead an adjective "Slippery".
Smooth operator
Slippery and smooth operator are semantically related in slick topic. Sometimes you can use "Slippery" instead an adjective phrase "Smooth operator", if it concerns topics such as glib.
Cite this Source
Smooth operator and Slippery. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/slippery/smooth_operator
Slippery & Smooth operator. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/slippery/smooth_operator>.
Smooth operator or Slippery. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/slippery/smooth_operator.
Google Ngram Viewer shows how "slippery" and "smooth operator" have occurred on timeline