inadequate

The funding for the local library is inadequate to cover the cost of new books.

(Chinese) 当地图书馆的经费不足以支付购买新书的费用。

He felt inadequate in his new role as a manager because he lacked leadership training.

(Chinese) 由于缺乏领导力培训，他在新的经理职位上感到力不从心。