Synonyms of defamatory

3 Syllables
traducing, vilifying, slanderous, obloquious, injurious, invidious, scurrilous, insulting, opprobrious, reproachful, scandalous, calumnious, detracting, libelous, maligning
4 Syllables
contumelious, aspersive, detractory, disparaging, abusive, denigrating, detractive
5 Syllables
derogatory, epithetical, calumniatory
6 Syllables
vituperative, vituperatory