The word "defamatory" refers to something that harms or damages a person's reputation by spreading false or negative information about them. Full definition
Libel involves the making of defamatory statements in a printed or fixed medium, such as a magazine or newspaper.» (law.stackexchange.com)
Successful High Court action in defamation against a well known leisure retailer following publication of defamatory statements against an individual. (hughjames.com)
There is a draft regulation on website owners» liability for defamatory comments posted on their sites. (slaw.ca)