macabre : gruesome; grisly

　　Machiavellian : crafty; double-dealing

　　magnanimous : generous

　　magniloquent : boastful; pompous

　　malevolent : wishing evil

　　malicious : dictated by hatred or spite

　　malignant : having an evil influence; virulent

　　malleable : capable of being shaped by pounding

　　mammoth : gigantic

　　mandatory : obligatory

　　maniacal : raving mad

　　manifest : understandable; clear

　　marital : pertaining to marriage

　　maritime : bordering on the sea; nautical

　　martial : warlike

　　maternal : motherly

　　maudlin : effusively sentimental

　　mauve : pale purple

　　meddlesome : interfering

　　mediocre : ordinary; commonplace

　　mellifluous : flowing smoothly; smooth

　　mendacious : lying; false

　　menial : suitable for servants; low

　　mercantile : concerning trade

　　mercenary : interested in money or gain

　　mercurial : fickle; changing

　　meretricious : flashy; tawdry

　　metallurgical : pertaining to the art of removing metals from ores

　　macabre : gruesome; grisly

　　Machiavellian : crafty; double-dealing

　　magnanimous : generous

　　magniloquent : boastful; pompous

　　malevolent : wishing evil

　　malicious : dictated by hatred or spite

　　malignant : having an evil influence; virulent

　　malleable : capable of being shaped by pounding

　　mammoth : gigantic

　　mandatory : obligatory

　　maniacal : raving mad

　　manifest : understandable; clear

　　marital : pertaining to marriage

　　maritime : bordering on the sea; nautical

　　martial : warlike

　　maternal : motherly

　　maudlin : effusively sentimental

　　mauve : pale purple

　　meddlesome : interfering

　　mediocre : ordinary; commonplace

　　mellifluous : flowing smoothly; smooth

　　mendacious : lying; false

　　menial : suitable for servants; low

　　mercantile : concerning trade

　　mercenary : interested in money or gain

　　mercurial : fickle; changing

　　meretricious : flashy; tawdry

　　metallurgical : pertaining to the art of removing metals from ores