Well, it depends on the intention behind your usage of such bombastic words. Very often, it is unnecessary and may only serve to alienate you from those you hang out with, especially when they sense that you are using those words to show off. It may not always make them feel inferior, it might backfire instead, hurting your friendship.
If such advanced words are used with the intent to educate, or perhaps to create humor (do explain your joke!), then perhaps it might trigger feelings of admiration and respect for you. They may not necessarily feel inferior in a bad way, but you might perhaps be inspiring them to be like you.