Which word means rapid, uncontrolled?

• A. Predispose
• B. Precipitous
• C. Precaution
• D. Preexisting

Answer: (B)

The main idea is a word that describes something happening very quickly and without enough control. precipitous captures that sense best, as it describes actions or changes that are abrupt and often reckless or risky—like a precipitous decline or a precipitous decision, where speed comes with little caution. Predispose means to make someone more likely to develop something, but it doesn’t say anything about speed or being uncontrolled. Precaution refers to a measure taken to prevent harm, emphasizing carefulness, not rapid action. Preexisting describes something that already exists before now, not something fast or uncontrolled. So precipitous is the best fit because it conveys both rapidity and a sense of lack of control.