Expulsive is often used to describe a force or action that pushes something out forcibly. Some synonyms to describe such an action include explosive, eruptive, sudden, violent, and impulsive. Another option is to use the term exudative to describe something that is oozing or seeping out. Evacuative can also be used to describe something being expelled or removed, typically from the body, such as waste. These synonyms help to convey a sense of force or urgency, whether referring to physical or emotional actions. Overall, using these varied options can help to add depth and nuance to writing.