| A | B |
| MAL | bad |
| bad nutrition | malnutrition |
| badly treated | maltreated |
| badly adjusted to the circumstances of one's life | maladjusted |
| to function badly | malfunction |
| improper treatment of a patient by a physician | malpractice |
| not adroit; not skillful; awkward; clumsy | maladroit |
| lit. a bad condition; a disease | malady |
| a vague feeling of illness or depression | malaise |
| lit. badly appropriate; not appropriate; a ludicrous misuse of a word that sounds somewhat like the word intended | malapropism |
| a disease once thought to be caused by bad air from the swamps | malaria |
| lit. one who is badly contented; a discontented or rebellious person | malcontent |
| a curse (opposite of benediction) | malediction |
| wishing evil toward others | malevolent |
| wrongdoing, especially by a public official | malfeasance |
| active bad feeling or ill will | malice |
| intentionally bad or harmful | malicious |
| to speak evil of; to slander | malign |
| bad or harmful; likely to cause death | malignant |
| to pretend to be in bad health to get out of work | malinger |