General terms:
* Rebel: This is the most direct translation, referring to someone who rebels.
* Rebellion: This is the act of rebelling itself.
* Insubordination: This emphasizes a refusal to obey authority.
More specific terms:
* Nonconformist: This emphasizes someone who doesn't follow the norms or expectations of society.
* Dissenter: This focuses on someone who disagrees with the prevailing opinion or authority.
* Maverick: This refers to someone who is independent and unconventional.
* Renegade: This emphasizes someone who breaks away from a group or cause.
Figurative terms:
* Firebrand: This is a metaphor for someone who is passionate and likely to cause trouble.
* Troublemaker: This is a simple, straightforward way to describe someone who causes problems.
* Ringleader: This refers to someone who leads a group of rebels.
The best noun to use will depend on the specific situation and what you want to convey.