What are the opposite words for fitness?

The word "fitness" typically represents good health and physical wellness. But what's the opposite of fitness? Several antonyms come to mind. Sedentary, inactive, and sluggish all represent lifestyles that are opposite of fitness. Unhealthy and sickly also represent the opposite of fitness. A person who's unhealthy doesn't have good physical or mental well-being. Likewise, a person who's sickly can have a weak immune system or other underlying health conditions that require medical attention. Lastly, the word unathletic can represent someone who's not fit for playing sports or other physical activities. These antonyms for the word "fitness" paint a picture of people who aren't physically or mentally well in various ways.

Antonym of the day

split down the middle
combine, join.