unctuous.

1. Having an oily, greasy, or lubricating quality.

2. Overly smooth and flattering in a way that seems false.

Use it for

Words that belong together

• unctuous substance

On the page

An unctuous substance coated the hinge.

The ointment felt unctuous.

Usage notes

Primary category: horror. Forms: Use more/most only for naturally gradable descriptive applications; technical classifications are normally non-gradable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.