The word "demonize" is often used to signify the act of portraying someone or something as evil or demonic. However, there are several synonyms that can be used instead of "demonize" to express this sentiment. These include vilify, stigmatize, defame, malign, and slander. All of these synonyms suggest the act of making someone or something appear as a social outcast by tarnishing their reputation or character. They carry a negative connotation, and are often used in a political or social context. When using these words in writing or speech, it is important to consider their impact and potential harm to the person or entity being discussed.