Antonyms for the phrase "bringing under control" include: escalating, exacerbating, aggravating, inflaming, and agitating. These terms are used to describe situations that are getting worse or out of hand, rather than being controlled. Examples of these situations include escalating tensions between two countries, exacerbating a medical condition, aggravating a problem at work, inflaming a conflict, or agitating a group of people. It is important to note that instead of exacerbating an issue, it is better to find ways to de-escalate or resolve problems in a peaceful manner.