* Tumult is a noun meaning a loud, confused noise, especially one caused by a crowd of people.
To express the idea of something being done in a tumultuous way, you can use adverbs like:
* Tumultuously
* Turbulently
* Noisily
* Chaostically
* Disorderly
* Furiously
* Wildly
For example:
* The crowd cheered tumultuously.
* The waves crashed turbulently against the shore.
Choose the adverb that best fits the context and conveys the specific kind of tumult you want to describe.