Adjective
1. malign
2. cancerous, evil, harmful, injurious, malevolent, malignant, harmful, maleficent, malevolent, malicious, unkind, malefic
Verb
1. malevolent, evil, maleficent, badmouth
1. traduce, drag through the mud, defame, slander, smirch, asperse, denigrate, calumniate, smear, sully, besmirch