Synonyms of libelous

2 Syllables
untrue, false
3 Syllables
traducing, vilifying, obloquious, injurious, malicious, invidious, scurrilous, opprobrious, sarcastic, backbiting, debasing, reproachful, scandalous, calumnious, detracting, maligning
4 Syllables
contumelious, malevolent, aspersive, detractory, disparaging, abusive
5 Syllables
depreciative, pejorative, calumniatory, defamatory
6 Syllables
vituperative