What is the definition of Contemptuous(Ly)?

"Contemptuous(ly) is like when someone sneers at you with such disdain that it feels like they're about to drop a bomb on your ego. It's a fancy word for being utterly dismissive, like a snarky cat at your expense, but with more class."

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Now, here's an edgy sentence: "The pompous CEO contemptuously dismissed our brilliant new idea as 'too niche' and 'not marketable', sending us packing like a herd of angry, confused cows on a noxious gas cloud."