vilify

verb

1. (transitive)To say defamatory things about someone or something; to speak ill of.
2. (transitive)To belittle through speech; to put down.

   “As one of the largest producers of genetically modified (GM) seeds in the country, Monsanto has been vilified by activists who describe GM products as 'frankenfood.'”

   “"Those who deliberately vilify China and sabotage the friendship between our two countries and do damage to our long-term friendship and benefits out of their sectoral or selfish interest will be cast aside in history,” he said. “Their children will be ashamed of mentioning their names."”