| A | B |
| benign | harmless; not life-threatening |
| bountiful | generous; in plentiful supply |
| benefactor | somebody who aids a cause, especially with money |
| benefit | a performance by entertainers, athletes, or others to raise money for somebody or something, especially a charity; or compensation over and above salary |
| maladroit | clumsy or insensitive in speech or behavior |
| malady | illness; a condition or situation that is problematic and requires a remedy |
| malevolent | wanting to cause harm; having a harmful or evil effect or influence |
| malfunction | to fail to function normally, or stop functioning altogether, usually because of a fault or bad design |
| malignant | harmful; is liable to cause death or serious disablement unless effectively treated |
| malpractice | professional misconduct |