unfitness
🇺🇸
/ʌnˈfɪtnəs/
🇬🇧
/ʌnˈfɪtnəs/
not being suitable or capable for something
His unfitness for the job was clear from the start.
not being able to do something, often due to health
His unfitness prevented him from joining the military.
not being in good physical shape
The rise in unfitness among students is a concern.