"Gets things rolling" is an idiomatic phrase that denotes initiating something or starting a process. Antonyms for this phrase could include "stalls," "delays," "prevents," "postpones," "inhibits," "deters," "hinders," "stops," or "halt." Each of these words implies a hindrance, impediment, or obstacle that interferes with starting a process or getting something underway. For example, if someone stalls a project or postpones an event, it prevents progress and delays the eventual outcome. In contrast, if someone gets things rolling, they are proactive, motivated, and productive. Antonyms for this phrase describe the opposite characteristics and actions.