* Formal: The presentation was a testament to the awesomeness of their research.
* Informal: That new video game is pure awesomeness!
* Descriptive: The sunset painted the sky with an awesomeness that took my breath away.
* Hyperbolic: The party was the epitome of awesomeness - it was epic!
* Slang: Dude, your new car is totally awesome!
"Awesomeness" is often used to express strong positive feelings, enthusiasm, or admiration. It's generally considered informal, but can be used in more formal contexts depending on the tone you're aiming for.