To describe something in a hilarious way, you could use these adverbs:
* Hilariously: This is the most direct and common way to use "hilarious" as an adverb. For example, "He tripped and fell hilariously."
* Amusingly: This suggests something lighthearted and enjoyable.
* Comically: This emphasizes the absurdity of the situation.
* Funnily: This is a more general term for something that is funny.
It really depends on the context and the specific type of humor you want to convey.