undreamed

The rapid advancement of artificial intelligence has opened up possibilities undreamed of just a decade ago.

(Chinese) 人工智能的飞速发展开启了十年前根本无法想象的可能性。

He achieved a level of success undreamed of by his family when they first moved to the country.

(Chinese) 当他的家人最初搬到这个国家时，他取得了他家人从未梦想过的成功水平。