unctuous – 1. excessively full of praise kindness or interest but obviously insincere 2. Having an oily or soapy feel; smooth and greasy in texture

(Pronounced uhnk-choo-us)

To remember the definition of the word unctuous, use the following mnemonic:

Our uncle chewed sweets in front of us (unctuous) while praising us excessively for not eating sugary stuff. His praise was insincere - he just wanted the sweets for himself. His oily, greasy wig was annoying too. 

Examples of unctuous in a sentence (1. excessively full of praise kindness or interest but obviously insincere)

His unctuous flattery was sickening. 

How nobody saw through the bosses unctuous praise was beyond him.

Their unctuous reassurance didn't make him feel any better. 

Examples of unctuous in a sentence (2. Having an oily or soapy feel; smooth and greasy in texture)

The steak was served with a side of unctuous goose fat roast potatoes. 

There was a strange unctuous liquid leaking from the pipe. 

The unctuous meal sat heavily in his stomach.