The term "heavyhitter" is often used to refer to someone who is powerful or influential. However, there are many other synonyms that can be used to describe such a person. Some examples include "bigwig," "mover and shaker," "titans," "high-flyers," "magnates," "influencers," "leaders," "tycoons," "kingpins," "boldfaced names," "power brokers," "heavyweights," and "dignitaries." These words all suggest a person who has achieved a significant level of success and has the ability to make a big impact in their field. Whether you're writing an article or trying to describe someone in conversation, using these synonyms can help you convey the same meaning as "heavyhitter" in a more varied and interesting way.