sclerotic

adjective
1
becoming hard because of a medical condition
اسکلروتیک, سخت پوست شده, سخت شده
2
losing the ability to change and adapt
انعطاف‌ناپذیر, دگرگون‌ناپذیر, صلب, متحجر
The movement was becoming increasingly sclerotic and bureaucratic.