Frederick, a proud and wealthy businessman gave the crowd a supercilious smile prior to his speech.
Feeling or showing haughty disdain

You are a very supercilious person.

How could you be so supercilious?

He is a supercilious, arrogent, and unpleastent person.

Supercilious is the correct spelling

Someone who is supercilious acts as if they are better than people around them. One sentence for supercilious is: I strongly disliked his arrogant and supercilious manner, which many others found off-putting. Another sentence would be: Although she grew up in unfortunate circumstances, her confident and at time supercilious attitude made her seem like one of the elite.

Ben, a billionaire, gave a supercilious smile to the crowd as a way of showing superiority