What is the primary characteristic of someone who is described as impetuous?

Describing someone as impetuous primarily highlights their tendency to act quickly and often without careful consideration or thought. This characteristic typically implies a lack of forethought, resulting in immediate reactions or decisions, often driven by impulse rather than a deliberate deliberation of options. Individuals who are impetuous may leap into situations or make choices rapidly, which can sometimes lead to unintended consequences because they do not take the time to reflect on the potential outcomes.

The other options emphasize carefulness, thoughtfulness, and deliberation, which are the opposite of impetuous behavior. Someone careful and cautious would likely take their time to evaluate situations thoughtfully and would not fit the description of being impulsive.