A malevolent person or thing has bad intentions and causes harm to others.
When we think about someone who's being mean-spirited or causing trouble, we might call them malevolent. For example, a character in a book or movie could be described as malevolent if they're plotting to hurt the main characters. In real life, we might use this word to describe someone who's spreading rumors or causing problems for no good reason. We also see malevolent when we talk about forces like evil spirits or supernatural powers that are out to cause harm.
Having or displaying ill will; wishing harm on others
