这块巨石太沉了，我们几个人合力都推不动它。

The rock was so heavy that it stayed ___immovable even when we all pushed together.

尽管面临压力，他仍然坚持自己的决定。

Despite the pressure, he remained ___immovable in his decision.

这座山峰几千年来一直巍然不动。

The mountain has remained an ___immovable presence for thousands of years.