When it comes to synonyms for the word "be notorious," there are plenty of options to choose from. Some of the most common alternatives include infamous, notorious, scandalous, disreputable, and notorious. Each of these words can be used to describe someone who is widely recognized for their negative behavior or actions. Other possible synonyms for this term include notorious, infamous, objectionable, disgraceful, and shameful. Whether you're looking for an adjective to describe a criminal mastermind or simply want to emphasize how well-known someone is for their bad behavior, there are plenty of great options to choose from.