Leg-breaker is a term that typically refers to a violent individual who intimidates or uses force to get what they want. However, there are several other synonyms that can be used instead. Some of these include enforcer, heavy, intimidator, thug, bully, tough, muscle, bruiser, brawler, fighter, and hitman. Each of these words describes an individual who uses physical or psychological strength to accomplish their objectives. While these terms may carry slightly different connotations, they are all commonly used to describe someone who is not to be trifled with, and who is willing to use force to achieve their goals.