The word "de-escalates" means to decrease the intensity or severity of a situation. Antonyms or opposite words for this would include escalate, intensify, worsen, aggravate, provoke, or incite. When a situation is de-escalated, it becomes calmer or less threatening. On the other hand, when a situation is escalated or intensified, it becomes more severe, challenging, or daunting. For example, if a person who is angry is approached with calmness and understanding, the situation can be de-escalated. However, if they are provoked or agitated further, the situation may escalate, and things can go out of control.