VICIOUS

Definition

1. adjective (of persons or their actions) able or disposed to inflict pain or suffering. — synonyms: barbarous, brutal, cruel, fell, roughshod, savage
2. adjective having the nature of vice. — synonyms: evil
3. adjective bringing or deserving severe rebuke or censure. — synonyms: condemnable, criminal, deplorable, reprehensible
4. adjective marked by deep ill will. — synonyms: poisonous, venomous