| A | B |
| dismal | depressing; dark and gloomy |
| malicious | intentionally bad or harmful |
| malpractice | improper treatment of a patient by a physician |
| malcontent | one who is badly contented; a discontented or rebellious person |
| malady | a bad condition; a disease |
| malaria | a disease once thought to be caused by bad air from the swamps |
| malign | to speak evil of; to slander |
| malevolent | wishing evil toward others |
| malefactor | an evildoer; a criminal |
| malaise | a vague feeling of illness or depression |