noun, noun which may take the genitive case particle 'no'
lack of exercise; insufficient physical activity
Commonly used to describe a sedentary lifestyle or not getting enough physical activity. Often appears in health advice and self-assessment.
最近、運動不足で体重が増えた。
Lately I've gained weight from lack of exercise.
運動不足を解
To fix my lack of exercise, I decided to walk every day.