Eng: Malignant...

惡

Abhor, Bad, Detest, Disgust, Evil, Ferocious, Fierce, Loath, Malicious, Malignant, Noxious, Scorn, Sicken, Wicked

惡性

Fraudulent, Malignant, Pernicious, Unhealthy, Vicious, Virulent

惡劣

Bad, Malignant, Nasty