| manifold | Many and various | |
| mandate | An official order or commission to do something | |
| malleable | Capable of being shaped or formed by pressing, hammering, or another force without breaking | |
| malinger | To pretend illness, especially in order to shirk one's duty, avoid work, or gain sympathy | |
| malign | To speak about someone in a spitefully critical manner | |
| malfeasance | The performance by a public official of an act that is legally unjustified, harmful, or contrary to law. | |
| makeshift | A temporary substitute or device | |
| magnate | A wealthy and influential person, especially in business | |
| magnanimous | Generous or forgiving, especially towards a rival or less powerful person | |
| magisterial | Having or showing great authority | |