definition of malice aforethought
malice aforethought. n. 1) the conscious intent to cause death or great bodily harm to another person before a person commits the crime. Such malice is a required element to prove first degree murder. 2) a general evil and depraved state of mind in which the person is unconcerned for the lives of others. Thus, if a person uses a gun to hold up a bank and an innocent bystander is killed in a shoot-out with police, there is malice aforethought.