A MUTINEER is someone who rebels against authority, usually in a military or naval context. The term 'MUTINEER' is derived from the Latin word 'mutinus, ' which means rebellious. A common example of a MUTINEER is someone who refuses to obey orders or follows orders that are contrary to the interests of their superiors. The term 'REBEL' is often used interchangeably with 'MUTINEER, ' as both terms refer to someone who is in opposition to an established authority.