Legal action refers to the process of using the legal system to settle a dispute or claim. If you are looking for synonyms for this term, there are several options to choose from. One option is "litigation," which is the process of taking legal action in court. Another synonym is "lawsuit," which refers to a claim or dispute that is taken to court. "Legal proceedings" is another term that can be used interchangeably with legal action, which refers to the steps taken in a legal case. Other options include "legal remedy," "legal dispute," and "legal prosecution." No matter which term you use, legal action is a serious matter that should be approached with caution and careful consideration.