Breadcrumb Home > Dictionary > Index M malice aforethought: Meaning and Definition of Find definitions for: mal'ice afore'thought Pronunciation: [key] a predetermination to commit an unlawful act without just cause or provocation (applied chiefly to cases of first-degree murder). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. malice malicious ✖ Related Content Daily Word Quiz: prandial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language