* Freely: This is the most common and direct way to express freedom in an adverbial form.
* Example: "The birds sang freely in the trees."
* Without restriction: This emphasizes the lack of limitations.
* Example: "They moved about the city without restriction."
* Independently: This emphasizes the ability to act on one's own.
* Example: "She made decisions independently, without needing approval."
* Unfettered: This emphasizes the absence of constraints.
* Example: "The artist worked unfettered by expectations."
The best choice for you will depend on the specific context and the nuance you want to convey.