Damaging to someone's reputation, especially if untrue(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "defamatory" in a sentence
"He said Wednesday he would file a complaint with Student Judicial Services and consult a lawyer about what he termed defamatory statements. thanks Fadi"
"Since the word "defamatory" is strong language, I wanted to respond in print in the same way I have responded to him in person each time we have discussed this issue in interviews that were, from my point of view, a pleasure and a privilege to conduct."
"DE and Suzuki Motor remained unresolved on Friday as a deadline set by the Japanese automaker for its partner to retract what it called a defamatory accusation passed without the desired response."