The phrase "starts the ball rolling" refers to the act of initiating something or getting a project, plan, or conversation going. Its antonyms would be words or phrases that convey a sense of inactivity, lack of initiative or reluctance. Examples include "stalls the ball," "puts the brakes on," "halts the progress," "ceases the momentum," "avoids the issue" or "ignores the opportunity." These antonyms highlight the importance of taking action and being proactive in achieving one's goals or objectives rather than being passive or hesitant. Starting the ball rolling is crucial to success, and recognizing its antonyms can also help us become aware of the things that hinder our progress.