1. (a.) Indulging or exercising malice; harboring ill will or enmity.

2. (a.) Proceeding from hatred or ill will; dictated by malice; as, a malicious report; malicious mischief.

3. (a.) With wicked or mischievous intentions or motives; wrongful and done intentionally without just cause or excuse; as, a malicious act.

acrid antagonistic antipathetic baleful baneful belligerent bitchy bitter catty caustic clashing colliding conflicting cussed deleterious despiteful detrimental envious evil full of hate green green-eyed harmful hateful hostile iniquitous invidious jealous malefic maleficent malevolent malign malignant mean nasty noxious ornery pernicious petty poison-pen poisonous quarrelsome rancorous repugnant set against sore spiteful venomous vicious virulent vitriolic wicked