Barratrous is an adjective that means engaging in harassing or frivolous lawsuits. Some synonyms for barratrous include vexatious, frivolous, harassing, malicious, groundless, and baseless. Vexatious refers to something that is causing annoyance or distress, while frivolous describes something that lacks seriousness and is petty or unimportant. Harassing implies behavior that is causing harm or annoyance through repeated actions or insults. Malicious refers to something that is done with harmful intent, while groundless and baseless describe something without a valid reason or evidence to support it. These synonyms help expand the vocabulary to describe legal behavior that is inappropriate and unwarranted.