What term describes a lifestyle that involves little physical activity, leading to potential weight gain?

The term that describes a lifestyle characterized by minimal physical activity, which can result in weight gain, is sedentary. A sedentary lifestyle typically involves long periods of inactivity and can include behaviors such as sitting for extended hours, whether at a desk, in front of a screen, or during leisure time. This lack of movement reduces overall energy expenditure, which can lead to an imbalance between calories consumed and calories burned, often resulting in weight gain over time.

In contrast to other terms, "active" refers to engaging in regular physical activity, while "aerobic" specifically pertains to exercises that improve cardiovascular fitness. "Dynamic" generally describes movements that are active and involve changes in position, making it inappropriate in the context of describing inactivity. Thus, the correct term that highlights the lack of physical activity and its associated risks is sedentary.