An animal or plant, or any trace or impression of any animal or plant, of prehistoric times, imbedded or preserved in a rock deposit or in caves.

化石。

A person antiquated or old-fashioned in his ideas.

【口】思想陈旧之人。

Anything that holds out against change.

任何固定不变的东西。

Pertaining to, of the nature of, or converted into, a fossil.

化石的；化石性的；变为化石的。