The phrase "bring to a screeching halt" typically describes a sudden and dramatic stop of an activity or event. However, its antonyms can convey different meanings. Some related phrases that imply a soft or gradual end include "come to a natural conclusion," "wind down," or "taper off." Other antonyms that denote a deliberate and controlled stop include "cease," "terminate," or "discontinue." In contrast, antonyms that indicate a continuation or acceleration of an activity may include "resume," "proceed," or "escalate." Choosing the appropriate antonym can provide a more nuanced or precise description of the situation.