vilification
Harsh, cruel speech meant to ruin someone’s reputation.
Vilification means attacking someone's character or reputation with harsh, cruel words intended to make others think badly of them. When someone vilifies another person, they're trying to paint that person as evil, worthless, or dangerous through vicious and often false accusations.
You might see vilification in history when opposing groups tried to turn people against each other through propaganda and name-calling. During wartime, governments sometimes vilified enemy nations by portraying them as monsters rather than fellow human beings. In politics, candidates sometimes vilify their opponents instead of simply explaining why their own ideas are better.
Vilification goes far beyond honest disagreement or fair criticism. If a student says, “I don't think that's a good idea because...,” that's criticism. But if someone spreads lies about another person's character, calls them terrible names, or tries to make everyone hate them, that's vilification.
When you see someone being vilified, it's worth asking whether the attacks are fair and true, or whether someone is just trying to destroy a person's reputation through cruelty rather than honest argument.