extant

1. ADJ If something is extant, it is still in existence, in spite of being very old. 现存的; 存世的[正式]

Two fourteenth-century manuscripts of this text are still extant. 该文本的两份十四世纪的抄本仍然存世。

The oldest extant document is dated 1492. 现存最古老的文件追溯到1492年。